Internet Index

A GIRL'S BEST FRIEND

BODY MOVING

BUT IS IT ART?

CHARLIE AND SPEED

CLOSE CALL

COPY WRITE IN

COUNTRY NOUS

EAT IT

File sharing on the Web

I spy...

ICS

Mail enabling Web pages

Make money fast

Missing link

No folders

On target

Out of Update

Password protect FrontPage sites

PING'S GOTTA CHANGE

PROTECT AND SERVE

Revoking Log-on

SURPRISINGLY GOOD TO TALK

Unrecognised modem

Web Fonts

Web site wipeout

When a modem doesn't pass the test

 

 

Web Fonts

What are the best fonts to use for web pages? What happens if I design a page using a font that the viewer doesn't have? Is there a way to download fonts with a web page, or is it better to convert text to a gif, so I don't have to worry about fonts.

To take the last question first, converting text to gif-files will ensure it appears in your viewer's browser as intended, but there are a number of drawbacks. Even the smallest giffile will take longer to download than HTML text, it won't look too good when printed and won't be seen by search engines. The trick is to use fonts that are likely to be on most PCs and Macs and that are readable onscreen at a variety of sizes. For small body copy this means sans-serif fonts, as seriffonts, eg Times New Roman, don't look good at small sizes. Arial, Verdana and Trebuchet all fit this description. Whether using FONT tags or Cascading Style Sheets, list fonts in your preferred order eg Verdana, Arial, Trebuchet, sans serif. The browser will use the highest available font in the list. Two technologies for downloading fonts are currently being developed Embedded OpenType, by Microsoft and TrueDoc by Bitstream (www.bitstream.com). There is information and an article about Embedded OpenType on the Adobe website at www.adobe.com/web/features/css3/page2/html and you can download Microsoft's Web Embedding Font Tool (WEFT) from www.microsoft.com/typography/web/embedding/weft2/default.htm

 

 

No folders

Having read up on Web Folders, I decided to try to create some. I carefully followed the Wizard all the way through, but when it finishes there are no folders to be seen. I'm using Windows 98 SE, which I've just upgraded to.

It sounds as though you have a problem that's related to a missing entry in the Registry, so follow the usual backup procedures for USER.DAT and SYSTEM.DAT before carrying out the following instructions:

Head down to the Start button, click on it, and then select the Run... menu item.

1 Type regedit in the Run edit box and hit the Enter key.

2 Go to HKEY_CLASSES_ROOT and look for lnkfile

3 Right-click on it, select the New menu item, and click on String Value.

4 Rename the newly-created value to IsShortcut

5 Don't put anything into the Value Data field; just click on the OK button.

6 If all has gone well, the IsShortcut value will link the shortcut in Network Neighbourhood to Web Folders. You should then be able to see your shortcuts after you create them.

 

 

ICS

I have installed Windows Me and Internet Connection Sharing on two networked machines. Although the host machine (the one with the modem) connects automatically when accessing the Internet from the remote machine, I cannot find a way of disconnecting from the remote machine -I have to go to the host and disconnect from there. Also there is nothing on the remote machine to indicate that it is connected. Any ideas?

Although we covered this subject before, we've had a lot of mail about it, so it's worth reiterating. According to an article on the Microsoft Support Knowledgebase, this behaviour is 'by design', and there is nothing you can do about it. Microsoft assumes that those of us who use 'Home Networking' all have unlimited or free Internet access. However, another article seems to suggest that the host machine will disconnect automatically five minutes after Internet Explorer has been closed on the remote PC. As far as we can see you have to either wait for the general timeout, or disconnect manually.

 

 

Revoking Log-on

After invoking the Microsoft Family Logon in Win 98, can it be revoked?

Yes it can. First go to Control Panel, Passwords, User Profiles and make sure all users use the same profile. Then go to Control Panel, Networks, and change the entry in Primary Network Logon.

 

 

 BODY MOVING

Although I've been using PCs and the Internet on a regular basis for a couple of years now, I've always used my desktop PC from home -which means that when I'm away from home on business I'm without my right arm! Now I've bitten the bullet and bought myself a Toshiba laptop, but I don't understand how the Internet connection works. As I write this, I'm in the UK, which is fine - I just called at PC World, picked up disc and enrolled with FreeServe. But I spend part of the time in Spain and next week I'll be returning there, so I won't be able to use FreeServe. OK, I know how to set up my Spanish ISP but what happens if, like last week, I'm in Hong Kong - how do I dial into an Internet telephone number from there and where do I find the number to dial in each country I'm in?

Obviously, if I'm using a mobile phone (I've got to buy a different one as my Siemens S10 won't connect up!), I don't want to be dialling a foreign number for calls that will last in excess of an hour (the majority of my business is done via Internet)

For example, in my area of Spain alone, I dial the local node and calls are at local rate. Twenty miles down the road, they dial a different number and, if they'd dialled the same number as me, calls are charged at national rate. Surely I don't have to research every Internet number for every place I travel to?

While a local ISP works in Spain, and there are plenty of free ISPs in the UK. Travelling abroad will require an ISP that has access nodes in each country you visit. Your best bet is to look into Internet service providers with a worldwide network. CompuServe has long led in this field, but companies such as AT&T (now including what used to be IBM Global Networks) at www.ibm.net EuNet (https.//traveller.eu.net)' Sprint or MCI should be able to offer vast local networks, though some may be stronger than others in those countries that you visit most frequently.

There are also a couple of associations of local ISPs. These are iPass (www.ipass.com) and GRIC (www.aimquest.com) each claiming about 4,000 access points. These operate like cellular phone 'roaming charges' with a 'per minute' cost (and sometimes 'per call' surcharge). Unfortunately, they can often cost more than simply dialling an international number!

As you say, it would be very inconvenient to look up each local access number. UK users are lucky in that we have 'virtual Pop. (0845 numbers) which are charged at local call rates throughout the whole of the UK (at least from BT phones). Few other countries have similar systems, elsewhere networks such as CompuServe have a national toll-free number that you can use to obtain the correct local access point. Your best bet is to research local access before you start on your journey. The roaming systems come with databases that give you the correct local access number and other information required to connect.

The other alternative is to hitch your laptop to a local area network with Intemet access at your destination. Most large offices will have this (though they mayor may not allow an outsider to log in through their network) and hotels, Internet Cafes and airport business lounges increasingly offer these facilities too. Try www.roadnews.com for more information.

 

 

File sharing on the Web

In my business, I need to collaborate with clients on marketing documents and for a variety of reasons, we don't want to use email for this. I don't have access to an IT department in my small consultancy, so how can I make my business documents available over the Web for collaboration?

The easiest way to probably do this is to use one of a growing number of sites that offer collaboration services for free or for a small monthly cost. Search for file hosting and look around any of the hosting sites to see what they do. You can share files on one of these sites or you can subscribe to a service such as Punch WebGroups (www.punchnetworks.com), which offers true collaboration features. The best thing about this kind of service is that you're not responsible for making sure the technology works, so you can focus on your collaboration.

 

 

PROTECT AND SERVE

I am interested in utilising my Celeron 400MHz, with 64Mb Ram and 6.4Gb processing unit as a Web server, so customers can go directly to it and have a browse around certain directories. How would I go about this and, more importantly, what are the security implications?

I would strongly advise you not to do this. A server needs a high bandwidth, 24-hour-a-day, connection with fixed IP address. While you can just about get by with an ISDN connection, call charges would cost a fortune (unless you found some ISP that was willing to dial you each time a customer tried to connect). In addition, most ISPs charge a lot extra for the fixed IP address needed to allow people to find your Web site. Although there are services out there that provide domain name service (DNS) for dynamic addresses, that is not really very satisfactory.

Add in the management headaches of setting up and running a Web server, and you'll find it costs far less to pay a Web-hosting provider {such as my favourite, Pair.Com) to host your Web site. This is also the best solution to any security concerns: while a properly configured server won't be a security threat, not allowing access to your computer at all is the best safeguard against accidental security lapses. This may change when high-bandwidth permanently connected cable TV modem or DSL services become available. Unfortunately the UK is lagging far behind the US in this respect. ADSL Intemet service, with download speeds up to 1.5Mbit/s or 50 times modem speeds, is now becoming available in many areas of the USA at around $40 {£25) a month with installation and a 'modem' for less than $200. Here BT has only a trial service going and, at the time of writing, hadn't announced prices for the service that should commence in March 2000. However, according to Adrian Mardlin of local Buckinghamshire ISP Nildram, its proposed wholesale prices total around £1,500 a year suggesting retail prices of £150 to £200 a month. And that's for a service offering just 512Kbit/s maximum download speed. Clearly BT is reluctant to give up all that call revenue from Internet users.

While Oftel has announced that it will force BT to lease its copper wires to competitors wishing to provide ADSL services, that's not scheduled to start until July 2001. Although some commentators have suggested the cost of renting the copper line might be around £100 a year making it possible to offer ADSL service for as little as £300 a year -you can be sure that BT will do its best to argue for a higher price. After all they are going to have to find some way to justify the exorbitant fees that they have been charging businesses for leased data lines for years, and competitors could just as easily use those leased copper wires to provide leased data circuits for business use.

 

 

Out of Update

I'm trying to access the Windows Update area at Microsoft, but I can't get through. I just get a message saying that the page can't be displayed. This worked before, so I don't understand what has gone wrong.

This can happen if the Update site has been updated in some way -usually a control update. If you have an old version of an updated control locked in your cache, you'll get that message when you try and access the site. To cure this problem you'll have to do a number of things:

Fire up Internet Explorer and head for the Tools menu (View menu in Internet Explorer 4) and select the Internet Options menu item.

Make sure the General tab is selected, then click on the Delete Files button in the Temporary Internet Files section.

Once the files have been deleted, click on the Settings button in the same frame and then on the View Objects button.

Look for the CV3 Class file and, if you find one, right-click on it, select the Remove menu option and then on Yes (if you don't see that file don't fret, just move on through the steps).

Back on the General tab, click on the Clear History button and then on OK.

Close down Internet Explorer and head for the Run edit window, located via the Start button and the Run menu item.

If you use Windows 9x, type the following: regsvr32 /u c:\windows\system\wuv3is.dll

If you use Windows NT 12000, type the following: regsvr32 /u c:\winnt\system32\wuv3is.dll

(Obviously, enter the folder name into which you chose to install Windows). Now that the control has been unregistered from the Registry (which is what the /u switch does), you can delete it from the System folder.

If you can't see the file in question, you'll need to switch to the Show All Files view. So head for Windows Explorer and, using either the View or Tools menus (depending on what operating system you're using) select the Folder Options menu item and make sure that Show all files or Show hidden files or folders is checked in the View tab.

Next, fire up Windows Explorer, expand the Program Files folder and then double-click on the Windows Update folder. Look for the file WUHISTV3.LOG, right-click on it, select Edit and then Invert Selection, and follow that up by hitting the Delete key. This will delete all files except the aforementioned WUHI.STV3.LOG file, which you don't want to get rid of as it holds your previous download history from the Update site. The last thing you want to do is try to remember where you were with updates that come along as quickly as the ones from the Windows Update centre.

You should now find that you'll be able to access the Update Centre. If you can't, then the problem is either that you have a firewall or something similar that's causing a connection problem for you, or because you have one of the anti-virus software packages installed that actually try to do battle with Windows Update.

You'l1 find a list of the programs that can cause this problem in this article in the Microsoft Knowledge Base: Q241234 You'll also find a link that talks about the problems caused by some proxy and firewall software. The article number is Q241783.

 

 

Password protect FrontPage sites

How can I password-protect only certain portions of a FrontPage 2000 Web? Specifically, how do I password-protect the discussion group on my Web site created in FrontPage?

FrontPage 2000's Web permissions features, like those of FrontPage 98, can be confusing and trying, partly because they're not all that powerful. In addition, they have to work in conjunction with the Web server and how they do so depends on which type of server is hosting your Web.

FrontPage only lets you password-protect an entire Web or subweb (a FrontPage Web created within another FrontPage Web). Select Tools I Security I Permissions. Tell the Permissions dialog to use unique permissions for this Web, click on Apply, then click on the Users tab.

Select the radio button 'Only registered users have browse access' and then on OK to change the permissions. You can then call up the Permissions dialog again to add users and their passwords. Next, email them and include the URL and username/password combination. You can't password-protect a single file from within FrontPage, but it's quite possible to work around this limitation in the software and password-protect a single page by creating a one-page subweb, setting its permissions, then linking to that page from the parent (or other) Web. As a matter of fact, this isn't a bad idea anyway; you should keep the interactive elements of your Web site separate from the rest.

As for the discussion group, the easiest way to apply protection is to use the Discussion Web Wizard. Select File I Open I Web, tell FrontPage where on the server to store the new Web, then fill in the details until you come to the question: 'Will the discussion take place in a protected Web?' Now click the 'Yes' button and keep going. The other point of confusion lies with the way FrontPage interacts with different servers. Knowing how to change permissions is all well and good, but it's useful only if the server co-operates. If you run your own Web server, no sweat, but if you're using a hosting service, you might not be able to do what you want. IIS uses Windows NT/2000's security, for example, and you have to add users through Windows NT/2000's administrative tools. Of course, you won't always have access to these. The security on Unix and Linux servers can be set in a variety of ways and not only might you be unable to add users or set permissions, but you might be completely unable to access the Permissions dialog through FrontPage (it might be greyed out). These are points to consider when you're signing up for your account in the first place.

 

 

Mail enabling Web pages

I want to write a Web page that can send email to me. I had a simple mailto: link in my page, but I want to use a form so that users don't leave my page and go to their mail clients. I've tried putting the mailto: link in the form action, but it doesn't seem to work well. What should I do to remedy this?

As you've discovered, the only way to do this in client side HTML or script is with a mailto: form (as in <formaction= "mailto:foo@bar.com"> ). And as you've also discovered, such forms don't work well, because they take the user out of the browser to a default STMP program, typically the mail client. Until version 5.0, Internet Explorer simply brought up the mail client, as with a normal mailto: link. Some browsers don't even go that far, however, and you'll usually get a warning dialog from the mail client, which can be disconcerting.

The only good way to have mail sent to you directly from the browser is to use server-side code, probably a Perl or CGI script, or one of a few available ActiveX controls for ASP sites. These give you much more freedom. Because the server-side solutions can be scripted, you can put whatever contents you want in the message body and include as many recipients as you want-and there will be no browser or mailclient compatibility issues.

If you're using a hosted Web page, your hosting service almost certainly offers a script or ActiveX control that it will support. Check with the service. If you have the option of using your own server-side software, here are two Perl scripts you can use on almost any site:

FormMail: www.worldwidemart.com/scripts/formmail.shtml

Nether-Mail: www.nethernet.com/free/mail.htm

There's also an ActiveX control available for ASP sites:

AspMail:www.serverobjects.com/products.htm#aspmail

Microsoft installs a control called CDONTS with its STMP Server. You'll find instructions on how to use CDONTS at http://support.microsoft.com/support/kb/articles/Q186/2/04.asp.

 

 

Missing link

 I run Windows ME installed over a working Windows 98 setup on a standard computer (AMD 459MHz chip, 128Mb of RAM and so on). I use a Pegasus 56K USB modem.

I have Microsoft Outlook 2000 and Outlook Express as my email software, together with Internet Explorer 5.5 installed. I use Doctors.net as my mail server and also as my ISP for the Web. All went well for months until suddenly I could no longer log onto either the Web or my mail server, although I could successfully dial in to Doctors.net's server. The error code thrown up was 'Server not found error code Ox800cccOd'. A complete reformat of the C drive and a re-install of Windows solved the problem.

It sounds to me as though the account information on your system got scrambled in some way, such that either your POP 3 or SMTP server information was incorrect. (The other cause for this error is the servers actually going down, but presumably this happened over an extended period.) There were a number of items you needed to check: your email address; the server information for both the POP3 and SMTP servers, including password if needed and port information too, ensuring that the POP3 server was set to use port 110 and the SMTP server to use port 25; and finally your connection information (although if you could connect to one server, I don't see why you wouldn't have been able to for the others).

 

 

EAT IT

I have received a chain e-mail that claims you can help solve world hunger just by clicking on a Web site, www.thehungersite.com It claims to be a show of thanks to sponsorship by advertisers but it sounds more like a con to me. Who is right?

There have been a number of e-mail scams claiming to help the hungry. Most have been hoaxes and when I saw this site had a '.com' address rather than the '.org' normally used by charities, I was extremely suspicious. To my great surprise, though, this site is genuine! There is even a link to it from the United Nations World Food Progamme home page at www.wfp.org The amount of money involved is small -each sponsor pays just half a US cent per click, but in total that amounts to donations of thousands of tons of food. So click away!

 

 

COUNTRY NOUS

I've got a Diamond Supra Express 56i installed on my Cyrix PC running Win 4.10.1998 and I can't get a connection above 31,200bit/s from home. I've tried my PC with the same modem and ISP from a friend's and I got 44,000bit/s; not groundbreaking, but significantly better and it rules out V.90 incompatibilities. I've tried it from different phone sockets in my house without success.

I also know that BT replaced the entire phone line from my house (presumably to the exchange) about six months ago. I live out in the country, so I wouldn't expect a perfect connection but surely I can get better than 31,200bit/s? I remember reading something about phoning BT and asking them to turn something up (the 'gain' perhaps?). I've searched through all my back issues, but couldn't find anything.

Yes, we have discussed this a few times. Since you live in the country, the chances are that 31.2Kbit/s is all you will get. Line throughput will generally fall as line length increases. After about four or five miles, the 'loading coils' used to maintain voice signals will degrade data communication and the bandwidth the line is capable of drops sharply. Loading coils are needed on long lines to compensate for the capacitance of the cable pair. I am not sure what BT's specifications are, but in the USA they are placed on lines of 18,000 feet, or greater, to improve voice grade transmission.

The trouble for data transmissions is that these coils have an upper cut-off frequency, which limit available bandwidth to around 3,000Hz. In addition, loading coils introduce phase delays, which are fine for voice but unacceptable for high-speed data. For information, here are the speeds you can expect for different available bandwidths:

56,000bit/s requires 3,600Hz

33,600bit/s requires 3,429Hz

31,200bit/s requires 3,200Hz

26,400bit/s requires 3,000Hz

24,000bit/s requires 2,800Hz

However, the snag is that voice calls only require 2700Hz bandwidth and unfortunately that's all most phone companies guarantee. While BT is gradually trying to replace long lines with local concentrators served by fibre optic, it will be a while yet before the whole network will be modernised.

Even close to the exchange, you will be lucky to get more than 40K to 50K (though some modems report better speeds than they actually achieve). You may want to try disconnecting all your internal wiring at the Master BT socket and then plugging your modem in there, to see if anything locally is affecting line conditions.

If the phone line is only being used for commuter or fax calls, you could ask your engineers to change the gain control from the default automatic to fixed gain but I wouldn't recommend this for voice lines, particularly out in the country.

You could also check with the engineers whether your line is being shared by the use of 'Dacs' equipment -which make one physical line serve two customers. The Dacs system is incompatible with 56K modems. But BT doesn't guarantee high speed data traffic unless you care to make the investment in an ISDN line such as their Home Highway system, or wait until ADSL becomes available in your area which may be never!

 

 

SURPRISINGLY GOOD TO TALK

I recently bought myself a 56K V .90 modem, and was disgusted to find that I was only connecting at 33.6K and that the actual connection speeds were 11K and lower! Having read a number of articles on how to improve your Internet connection, I tried all sorts of things to try to fix this. Finally, I gave up and contacted my ISP (Virgin Net) who told me I should get in touch with my phoneline provider and ask the to 'increase the gain' on my line.

I was surprised at just how helpful BT is. I had read all these articles saying BT claimed it only guaranteed voice-quality lines and didn't want to know about Internet connections. The people there were very helpful and did their best to help me. They even told me how 'problematic DACS was with modems’ and that I didn't have one on my line. BT is not as bad as everyone is making it out to be. I was impressed with its level of customer service. Thank you BT and Virgin Net.

Well there you go. BT aren't the ogres some people like to make out, eh?

 

 

COPY WRITE IN

I am creating a Web site for my photographic business and would like to know if there is any way of stopping people right-clicking on the images and copying them? I'm not too worried about copying thumbnails, but I would like the full size images to be restricted. The images are JPEG format. If you save the complete Web page, will they be saved? I have a feeling I need to use Java in some way.

Basically, no - when you view a Web page, the source and images are copied to your computer and placed in the browser cache. So it's impossible to view a Web page without copying the images, and darn complicated to devise a system that can prevent a user from saving copies.

That being so, you need to look into other ways of protecting your copyright. For a start, both Gif and JPEG files allow the creator to insert comments, which can include a copyright message. You should also place your name and copyright information on the image itself, either on the margin or perhaps right across the centre, depending how strongly you are worried about copying. There are also search programs available which will help you locate Web sites using illegal copies of your material.

My own feeling is that the people who copy images are for the most part unable to afford to pay for them. So most copying does not cost you any sales. In fact, the presence of your pictures out there may act as an advertisement for your services and draw in paying customers. For this reason, I would allow copying but include a neat copyright message on each image in a position where it does not interfere with the subject, but away from the edge so that it would be hard to crop off.

 

 

PING'S GOTTA CHANGE

I have an Advent 8712 and I am thinking of investing in a new modem for the purposes of online gaming. At the moment, I currently have a us Robotics 56K Voice Internal PCI Modem and was thinking of getting a US Robotics Internet gaming modem. My problem is that I don't want to take the other modem out. Would it be possible to have both the modems in the one PC at the same time but in different PCI slots.

I don't see any reason why you can't have two modems in the same computer. I have three in mine, which enable me to be on the Internet, receive a fax, and process credit card transactions at the same time. Unless that is what you need to do, I also don't see much point in keeping both of them.

3Com is a great company with some good products, but the Intemet Gaming Modem seems to be a product created for its marketing 'spin' rather than any fundamental technological advantage. Unless you are buying it for the free games included, the 3Com/USR Intemet Gaming Modem strikes me as an over-priced marketing gimmick. Sure, it claims big reductions in ping times but if you look at the 'independent test report' it quotes, you'll see that all except one of the comparisons are with controller-less software-based modems, where the CPU has to do most of the work. These would be expected to show longer ping times. Moreover the report did not show details, including software versions. And I suspect that the worst scores shown were due to buggy software and would have been fixed by updating to the latest drivers.

Let's say right from the start that any hardware-based modem will outperform a cheaper software-based one. That leaves us with one valid comparison with another hardware based modem, which showed an 11 percent improvement in ping times when connected to a 3Com host router and just a seven percent improvement connecting to an Ascend router.

Bear in mind that these are studies commissioned by 3Com and we have no way of telling whether this one modem was typical of other hardware modems or not. Some other testers using less formal methods, have failed to find any significant improvement in ping times comparing the Intemet Gaming Modem to other hardware based modems.

Secondly, the 3Com Gaming modem only gets these lower ping times when in a special 'gaming mode'. The instructions tell you to 'disable gaming mode to achieve optimum throughput'. That implies to me that 'gaming mode' simply reduces the V.90 connect speed, trading off throughput for stability.

Many modems allow you to do this by altering their advanced modem settings. Since a ping test does not exactly represent the pattern of data transferred by the game itself, optimising ping times at the expense of data transfer rates looks good, but is not necessarily going to improve game speed.

 

 

When a modem doesn't pass the test

When I run a component diagnosis utility on my system, it reports that my modem fails advanced AT commands. What are advanced AT commands and is there any way to fix this problem?

Chances are high that there's nothing wrong with your modem and, if it's working correctly, you probably don't need to worry about this problem.

There's actually no single set of advanced AT commands. Even the venerable Hayes modem line included products with different command sets. As a result, it's likely that any third-party utility attempting to test the advanced modem commands may encounter some that don't work as expected. As long as you have documentation for the modem that shows the commands and register settings controls, you should be able to take advantage of all the options on offer.

 

 

Unrecognised modem

I just installed a new modem in my system, but Windows 95 doesn't detect it. How do I get the computer to recognise the new modem?

It's likely that your new modem is too similar to another one that Windows thinks is already installed in your system. You need to start with a cleaner slate.

Remove the new modem from your system. Now power up and remove all modems from the Modems applet in Control Panel. Shut down the computer and turn it off. Reinstall the new modem and power up your system again. Windows should now recognise the modem, although you might have to specify a different driver for it using the Have Disk option during the Modem Wizard procedure.

 

 

BUT IS IT ART?

I recently downloaded quite a few graphics files from the Web but, when saving the IR, did not notice the file extension. All of them were saved as .Art files. My problem is that I can preview these pictures via My Computer so something recognises the format, but none of my graphics programs recognise them at all. Do you know of any way that I can access these files or change the format to JPEG or BMP so that I can work with them? I have never come across .Art files before -could this have anything to do with my recent change of ISP to AOL? I was thinking that maybe it may be something particular to them, but they can't seem to shed any light on the subject.

The .Art file extension is used by several different packages for their own proprietary formats. These include Xara Studio drawings, Canon Crayola art file, and various clip art file format. Some scanner software packages also uses the .Art extension for their proprietary file formats. More relevantly in your case, .Art is used by AOL's proprietary software to designate files compressed using their proprietary Johnson-Grace compression algorithm. If you view the files with a hex viewer, you will see that they start with the 'signature' JG. No doubt the standard graphics packages will be updated to recognise them soon -provided AOL releases details of the file format.

Although AOL uses the .Art format to speed up downloads, it can only do so by reducing image quality. You can disable use of .Art images and get normal Gif or JPEG files by changing a setting in the AOL WWW preferences. Go to My AOL, Preferences, WWW, click on the Web Graphics tab and then uncheck 'Use compressed graphics'.

If you double-click on the art file from within Windows Explorer or My Computer, it should open in Internet Explorer. While .Art file format originally only applied to the customised AOL versions, I noticed when downloading Microsoft's standard Intemet Explorer 5.01 that AOL .Art file support is now offered as an option. If clicking on the file does not work, you might have to open IE and then open the file. When the image is displayed, right-click on it and choose 'save picture as', and then go to 'save as type' and click on the drop down list arrow. You should be able to choose at least bitmap (.bmp) which, although bulky, can at least be read by standard graphics packages.

 

 

A GIRL'S BEST FRIEND

In reply to ('You've Blocked Mail, Helpfile, Shopper 142), it is not a problem at all that you can't send e-mail using your FreeServe account when you are connected using your Screaming.net account. It is more of a solution - using blocking like this helps stop spoofing (the process where somebody can send an e-mail and make it look like it came from a different address). FreeServe will not let you send e-mail through its servers unless they can verify that you are sending it using your own e-mail address. It does this by checking the telephone number you are dialing from and comparing it with the number registered for the account that dialed up. Many ISPs use the same methods as well, not just FreeServe.

 

 

CLOSE CALL

We all know of, and complain bitterly about, the difference in local phone call costs between the US and UK, especially when it comes to the question of Internet access.

So how about this for a compromise? If BT was to make the first 60 seconds of all calls free it would mean that we could collect and send practically all e-mail for free, misdialled calls would not be charged for, and calls where the intended recipient was not available would also be uncharged.

While not being the Full Monty of free access, at least it would be a good halfway house until we went all the way. I don't know whom to approach at BT with this suggestion. Feel free to put it forward if you do.

It's Oftel that you want to talk to, Tony. And as this issue went to press it seemed that BT was moving closer to the American model, announcing a couple of fixed-rate Internet access deals for private customers. It'll cost around £35 a month for full-on freeplay, and there are other deals for off peak access apparently.

 

 

CHARLIE AND SPEED

I read with great interest Mike Bedford's article 'Hooked On Speed' (Shopper 140). It was a very informative article which I found illuminating. I would now like to know whether it is possible to find Satellite Service Providers and if I can buy the appropriate hardware and set it up myself. Are there any hardware stores that sell the needed cards who you know of, and can you supply me with a list of providers whom I can contact?

I haven’t had chance to read Mike's article, but I have looked at these systems in the past. You need to have an account with the service and they generally supply the interface card (which usually contains a proprietary data decoder) when you order the service.

My tests using PC Direct (which uses a geosynchronous satellite with a relatively high orbit) have been very disappointing. Although file download speed is great, there is a very long latency (or delay) as data travels up to the satellite and then back to you. That produces a very noticeable delay before a Web page first starts to appear. Then the text appears instantly, but this is followed by another long delay before the graphics start to appear. In addition, because of the limited number of satellite channels available, data transfer tends to be fast on new accounts, then slows down as the channel fills up with customers. Taking the two factors together, accessing frequently updated Web material may be significantly slower than a 56K (or even 28K) modem.

The satellite does allow you to download constantly broadcast material, like newsgroup feeds, so if you leave your computer on all night, you will have all the messages in Your favourite newsgroups. Of course there are plenty of offline newsgroup readers that will do that for you anyway. Note, though, that this option forces your computer to download all of the broadcast feed, and only after decoding it and writing it to the hard disk can it determine which items you asked for. So, even with a busmastering PCI card, it imposes quite a heavy load on the computer.

Beware, this system won't suit most users. Look for a cable TV company in your area that has broadband Internet access, or wait for BT to start offering DSL service at sensible prices

 

 

Make money fast

I don't suppose you have any cool ideas for an Internet service or Internet business?

Of course. I actually have half-a-dozen sure-fire money-making schemes that can be run over the Internet with no start-up costs and just a few hours of your time each week. Some of these marvels include.

Feng Shui consulting to make sure people's homepages are laid out harmoniously.

Internet clock - access the exact time from your PC, wherever you are.

An e-mail worm that encrypts everyone's hard disk unless they send me a cheque for £5.

For the really killer ideas, send me £9.99 for a copy of my book(let) How to Make Money on the Internet by Telling People How to Make Money on the Internet.

 

 

Web site wipeout

Today I was astonished by the service of Geocities. I have had my personal Web site there for years. A friend of mine was going to buy me a CD for my birthday, but he wasn't sure which CDs I already had. So I made a list of my CD collection (including the track listings and cover images, as on Amazon.com), zipped it up and put it on my homepage for my pal to download.

Now, Geocities has wiped out my entire account. It hasn't contacted me or anything - it just erased every single file. I can't believe it is illegal to put a list of the CD's you own on your homepage! What's wrong with those people? Are they as mad as coconuts?

Call me suspicious but why did you have to include every track listing and the cover art for your CDs? Surely artist and title would have been enough. And isn't that rather a lot of work to go to, just to let this friend avoid duplicating a CD in your collection? Wouldn't it have been easier to simply list three or four titles that you didn't have and let him pick one of those?

I'm not necessarily saying that you were using your Geocities account to run your own little record store but the fact that you have resorted to such a flimsy cover story in your e-mail to me does suggest that there is more to this than meets the eye. I can certainly see how Geocities sysadmins could mistake a zipped catalogue of this kind for a commercial venture. At the very least, the scanned cover art would be a breach of copyright if you didn't have the record labels' permission. Geocities wouldn't discuss your individual case with me but it did draw my attention to the terms of service that you agreed to when you signed up in the first place

(http://docs.yahoo.com/info/terms/geoterms.html). Section 5, paragraph f prohibits posting copyrighted material, and paragraph q prohibits offering for sale any products or services. Let me know how your appeal goes.

 

 

On target

In April this year I finally attempted my own Web site. It has progressed quite well and I used your feature in PCF 105 in order to add a search engine to the site. I selected the Free Find service and I'm very happy with what it provides. However, I have set up the site using frames -a narrow frame on the left and a larger frame on the right. When the search engine returns results, the page is not displayed in its frame but across the full width of the page, which enlarges and hence distorts the graphics. Can you suggest any way around this please? I have been writing the pages in HTML and I'm sure that this has happened because of the way I've written the code but I can't figure out how to correct the problem.

I'm trying to resist the urge to be pedantic and point out that all Web pages are written in HTML, whether you use Notepad or FrontPage, but as you can see, I'm not doing very well. You don't need to be too hard on yourself, though, because it isn't your code that is causing the problem so much as the Free Find code that you have pasted in to activate the search facility. Somewhere in the HTML for your page you have a line that reads:

<FORM ACTION ="http://search.freefind.com/find.html" METHOD="GET" target="_top">

The last bit tells the browser to plonk the search results in a full window, overriding any frames that might be in place. To preserve the frame structure, you need to change "_top" to whatever name you have assigned to the frame using the frameset tag. In your case it would be target="three".

 

 

I spy...

After reinstalling Windows from scratch I was reinstalling my regular utility programs. The addition of one of them prompted the reappearance of an annoyance that had been present for some time: every time Windows starts. I am prompted to connect to the Internet. Further investigation lead to the discovery that the program installs a system by a company called Aureate. I am told this manages the adverts displayed in the program, and the advertising revenue enables the authors to distribute the software free of charge. Fair enough, but scouting around the newsgroups and the Web revealed plenty of references to 'spyware' and how the Aureate system, and similar software, sends your personal details back to the spyware company and also logs your activities on the Net so they can track where you've been, which programs you downloaded and so on. Aureate itself -now called Radiate (www.radiate.com) denies these allegations. Is there any way I can test Radiate's claims? And even if Aureate/Radiate is telling the truth, how can I know whether ad-supported software using other companies' systems isn't doing something I won't like?

You are right to be concerned. The Internet is frontier country and, like the Wild West, people are constantly testing the bounds of what can be got away with. Spyware suddenly became a hot story when Aureate/Radiate appeared on the scene, and public and media pressure forced the company to behave in a more reasonable and transparent manner. Recently the issue blew up again in relation to the NetZip Download Demon, RealNetworks RealDownload and Netscape/AOL Smart Download utilities. A detailed and disturbing exploration of what these programs got up to can be read at http//grc.com/downloaders.htm. Many people avoid ad-ware altogether. The downside is that they could be missing out on good software that uses a perfectly acceptable advert management system without infringing privacy. Neither does avoidance prevent somebody sneaking a nasty monitoring system into a program which isn't obviously ad-ware. A firewall may help you spot suspicious-looking network activity, but it probably won't tell you what's really happening. If you want to examine the traffic over your Internet connection, what you need is a packet sniffer. This is a program that logs a copy of incoming and outgoing network packets. You can page through them at your leisure, looking for unexpected activity and examining the data being carried There are sniffer tools galore for Windows, DOS and Unix at http://packetstorm.securify.com/sniffers/indexdl.shtml. A long way down /sniffers/sniffing-faq.htm are links to others. Yet more packet sniffing resources are to be found at http://grc.com/oo/packetsniff.htm. As is pointed out on the PacketStorm site, sniffers have legitimate and illegitimate uses. Essentially you can eavesdrop on all the packets that pass by your machine on a network, whether or not they are intended for you. Good for network administrators tracking down problems, but the security risks are clear. If I were caught using one unauthorised on a company network, I think I could reasonably expect to be invited to further my career elsewhere.

I downloaded Analyze.exe from PacketStorm, along with the driver from the author's site. When installing the driver I had to repeat the process for each adapter (the network card and the dial-up adapter). The software will find an adapter which doesn't already have the packet sniffer driver bound to it, and attach itself. After that I was able to run Analyze.exe, choose an adaptor, and set it logging. You don't see the packets in real time -you tell Analyze to stop logging, after which it organises everything for display. What then? A mountain of information is presented and you could spend half your life searching for evil. One way to cut it down to manageable proportions is to reorder the data on the Layer 3 field which shows the source and destination addresses. This way you can home in on outgoing packets (your own IP address will be on the left) and the destination addresses will fall into distinct blocks. If all you did was browse a couple of Web sites, you can use the PING command from an MS-DOS Window to translate their URLs into IP addresses. You can then ignore these in the list and focus on addresses which do not seem to tally with the sites you visited. If required, a program such as Sam Spade (www.samspade.org/ssw/) can help you find out who owns these addresses

As you scroll through the unknown destination addresses, you can see the packet contents as hexadecimal and ASCII. Drag the pane divider to the left if lines of the hex/ASCII display are broken up. Part of a packet is addressing information; only some is actual data. Analyze's lower Ieft window has a data option which, when selected, will highlight the segment You may see requests to Web servers, your side of the dialogue between your PC and mail and news servers, and also the requests for banner graphics from advertisement servers. Watching for these lets you identify the addresses the ad-ware computers are operating at. You can then examine those packets in more detail, watching for personal information. This might not be plain text, so paging through your packet sniffer log may not make compromising data jump out. The story at http//grccom/downloaders.htm will give you an insight into the sort of thing you would have to look for. What you can do then is define a filter which, for example, only traps packets going to particular addresses. This cuts the data overload and lets you see the dialog between your computer and the suspect system more clearly. I won't pretend it's an easy business, and to do it effectively you would have to educate yourself on the workings of TCP/IP and probably have a technical background. If you want to check whether you have known ad-ware installed, in addition to the free OptOut program at the Gibson Research site, there is a program called Ad-aware at www.lavasoftde which a lot of people are raving about.