Hey, no i haven't installed SH3 to program files, it is under F:\Steam\steamapps\common\Silent Hunter 3.
I installed MultiSH3 and SH3 Commander to each a separate install to each copy of the game (F:\Silent Hunter 3 NYGM and F:\Silent Hunter 3 GWX).
I clicked "save" on the multish3 dialog box after entering a 3 digit name so i have no idea why it is not working.
ah well, where would i be without mod troubles?
The annoying thing is it will turn out to be some silly mistake on my part!