I have downloaded a demo copy of Avast server edition and tried installing it on a Windows 2000 SP4 server. When I get to the licence screen and click the demo button for the 60 day trial, an error message pops up saying “The licence is invalid”.
I can locate the licence file in the temp directory, in the path shown in the licence dialog box.
Another post suggested downloading from the asw.cz site instead of the avast.com site. I tried this but got the same error message.