I ran into an interesting problem today. I've got a laptop and a desktop PC both in a Homegroup, which I guess is Windows simplified way to set up a home network.
I've got a Maptool campaign file on my desktop, and I've enabled file & folder sharing so that my laptop can navigate to the proper folder, but lo and behold, it doesn't see the CMPGN file. I know it's definitely there. Anyone else ran into this?
Is it a LIBRARY? IIRC, older versions of Java don't understand Libraries. I think this is fixed in java 7+. This is the default location which contains My Documents, My Pictures, etc from Windows 7 and higher. Second, from what I recall, older versions of java don't resolve symbolic links on windows(which Libraries may be an implementation of).
Best answer if you want to share stuff, pick a dedicated cloud solution such as Dropbox. I have used that for years and there is no OS specific magic going on, so it it just works.