If you want to know why something doesn't work check the error response.
Code:
$Drive = "H:"
$Server = "MyServer"
$Share = "Sharename"
USE $Drive "\\" + $Server + "\" + $Share
? "Error Code = " + @error
? "Error text = " + @serror
But since you use the user option my guess is that you you have not set up domain security the way I have.
I think using the "*" for the drive is problematic and discourage its use.
