Mike, I tried going the way the wikipedia article says and the folder does not become a briefcase folder just by adding the desktop.ini
On the other hand I created a briefcase folder manually and the desktop.ini in it differs slightly from what wikipedia says. Nevertheless applying that desktop.ini to yet another folder also does not work.
There's more to it, I found there is a syncui.dll, that is supposed to include a Briefcase_Create function, but that entry point is not found.
The article also says the briefcase has deprecated in windows 8, but I am also not able to do this on Win7.
You may give it a try on XP, ramanjain: rundll32.exe syncui.dll,Briefcase_Create
Otherwise there is OneDrive, DropBox, GoogleDrive and more like these and if you don't trust these services you can encrypt your files automatically before syncing them via Cloud Drives, when using Boxcryptor as a preprocessing tool.
Bye, Olaf.