FYI, after creating the desktop file with gnome-desktop-item-edit and the string you quoted above, my desktop file actually contained the following exec line:
Exec=env WINEPREFIX="/home/vorlon/.wine" wine "C:\\\\comlogo\\\\Comlogo.exe" c:\\\\comlogo\\\\demo\\\\kidspac.lgp
FYI, after creating the desktop file with gnome-desktop- item-edit and the string you quoted above, my desktop file actually contained the following exec line:
Exec=env WINEPREFIX= "/home/ vorlon/ .wine" wine "C:\\\\ comlogo\ \\\Comlogo. exe" c:\\\\comlogo\ \\\demo\ \\\kidspac. lgp