Where's the message coming from? Sounds like the problem isn't where you
think it is.
Can you network the drive to a newer system? I don't know whether you've
come across the "spacesniffer" utility, but the first thing to do is
check which drive is full. That's assuming you've got more than one
partition. How full does Windows Explorer say your drive(s) are?
Then check whether your temp directories are clogged up. Both at Windows
level, and in mvBase. Are there any hidden update directories in
c:\windows? Unlikely, but you never know ...
If you can run spacesniffer it'll give you a good idea where to free up
space.
And a common cause of problems is Window's pagefile.sys nicking a lot of
space - you might need to try and shrink that.
Cheers,
Wol