I have a Windows 2000 system which no longer boots. We've narrowed it down to disk corruption of some Windows components, and a clean install of Windows should fix that. But there's some specialist software that's the reason this machine still exists. In a sense this isn't retro - this is a system that's still used in a research lab, because it supports hardware that isn't supported by anything much more modern. Some time in the last 20 years the installation media for the specialist software have gone missing.
I recall being able to move an installation from one Windows system to another (specifically I know I did this with Paint Shop Pro from a Win95 PC to a Win98 installation and then an XP system). I have an idea it involved copying over all the relevant files (most but not all of which were in the program's own folder under
c:\program files - finding the others was a hard part) then registering the DLLs, but can't recall the details. In this case we've also got hardware drivers to consider.
Is there a sequence of steps I can follow, or even just a few tips to help me remember?