For how long will the (?free?) Clam win antivirus program support computers running on windows 98se? and how complete an antivirus program IS clam win for real time computer and e mail scanning ?

Is it also compatible with the use of Outlook Express and computers utilising the Mailwasher program?

Here's a shot at your questions (If i'm wrong about something, i'm pretty sure it will be corrected):

* ClamWin currently has no real-time protection, it is an on-demand scanner only.
* The developers are working on a rewrite of ClamWin in C++/C# which will contain real-time protection. The real-time protection will not work on Win98 though, since it is implemented as an NT-driver. The rest of the program (the service and GUI) should work if you install the .NET framework.
* Even after the release of this rewrite, it is still the intention of the team to continue to support/upgrade the current Python application as it is now, so you can always continue using this on Win98.
* As for email-scanning: there is only a plugin for MS Outlook, which is a totally different product as Outlook Express, so it won't work on Outlook Express.
* There is no support for the Mailwasher program. I don't know this program, but some email programs allow you to configure it to use an external command-line scanner. In that case you could set it up to use the clamscan program which is used by and delivered with ClamWin.

I hope this answers your questions,
Peter