Originally Posted by CaptNKILL
System files are always being used. If there is a system file in memory that is integral to the operating system and a program crashes in a way that causes that file to develop some junk data, it'd probably be corrupt.
Except that it would then have to write the corrupted in-memory version of the file back to disk, and I can't see any reason that it would do that. In fact I don't see why anything except a system update would be writing to a system file at all, they're there for apps to use, not alter.
I suppose it's possible they're overwriting DLL's or something, I know that used to go on a fair amount (is it even still allowed?), but it's hard to believe they would completely bork a system (especially a clean install as in the one case). Any chance one of the sites got a trojaned copy of the demo?