Kixtart has trouble with the $ character sometimes. I map to hidden shares by adding the $ as a separate character:

USE F: $FS+@USERID+"$".

I haven't tried Pat's method, but I'm sure it also works. Use whichever method is more convenient for you. In most cases, you should be able to write a cleaner script by just adding +"$" to get to hidden shares.

Hope this helps...