Did you try creating an actual shortcut to the .vbs file then right-clicking it and choosing Properties then Change icon? The icon you want to use has to be on the HDD in a Folder, usually in the same Folder as the file, and you'd choose that icon. It's best to save the icon as a .ico file and adhere to the size limit for it, can't be very large. Most icons associated with programs are embedded in their .exe file, maybe in a .dll file.