Interesting little thing that I'd love to get to the bottom of.
I transfer home from London to Languedoc three or four times a year. I have a computer in both places and sync files to a USB3 (W:) drive to D: internal disk on each machine as I go. It's a system that works well. But here's an oddity.
I run my accounts on an old copy of Microsoft Money. After syncing my files to my machine here, Money would not start, it would flash up on screen for an instant and then vanish mostly but occasionally start up. It loads with a file as normal from my D: drive. I then realised that would start, it was always when the W: drive was plugged in. On the W: drive was 'My Documents' folder, though I now run files from 'Documents' and 'My Documents' was just a left over. I deleted all the files from W:'My Documents' and Money still ran. But if I deleted the empty 'My Documents' folder, Money would not run.
So it obviously needed the W: 'My Documents' location to exist. I searched the registry and eliminated all reference for Money to W: That did nothing. I then did a 'Find' on all files containing "W;\My Documents" but none seemed relevant. Until, I found one file in AppData\Local\GPSoftware\Directory Opus\State Data\MRU\rename_folders.osd. It contained references to renaming while I was trying to locate the problem.
After copying to another name for safety, I deleted the file and ....Money started perfectly, W: drive plugged in or not, My Documents folder present or not.
I'd love to know what was going on. Why would a reference in Dopus appdata to a renamed folder prevent Money from opening? Money can't reference that folder intrinsically because it wouldn't exist on most people's installations. I'm intrigued!