I copied some of the games from Windows to my Public partition which is formatted vfat. In VL6 i had no problem running all of the games. In VL7, however, I had to move the whole folder to a reiserfs formatted partition in order to run the one game that required mfc42u.dll which is in that folder. (I tried copying the dll to c_drive/Windows/system32 and to .../system to no avail.)
If you are interested, here is the result of running from terminal:
bruce:$ wine 3mshearts.exe
err:virtual:map_file_into_view failed to set 00000007 protection on file map, noexec filesystem?
err:module:import_dll Loading library MFC42u.DLL (which is needed by L"Z:\\mnt\\Public\\WinGames\\3mshearts.exe") failed (error c000007b).
err:module:LdrInitializeThunk Main exe initialization for L"Z:\\mnt\\Public\\WinGames\\3mshearts.exe" failed, status c0000135
This is just one of the many difficulties I've had in moving to VL7.