It might work if the files are in exactly the same location.
The wiki has a topic called Moving Files.
Thank you, but that wasn't quite my point... I know of course that file paths have to match. I've got all my media on USB drives, which will be connected to the new PC by identical drive letters etc., so that's the easy part... ;-)
Rather what I want to do is 'migrate' (copy) my entire MC setup by moving the program files, app data folders, and ex-/importing registry values. The idea is, once all these files are in identical locations as on the source PC, I can start MC on the new PC to find everything look exactly the same. No hours of making settings, waiting for thousands of video thumbs to create (at full CPU load), etc...
Again, the inital question was, will this 'migrated setup' also work on a different PC (and newer Windows version)? I think I had it all running perfectly at first using this method, but then made some changes to the new system, which screwed it up again, and never got it back...
Do you see a chance for this to work? Thanks in advance for your input.