[H] Windows 7 environment variables

[Thane Sherrington]

I have a little batch file that uses %username% to do some 
stuff.  That works fine in Windows XP and Vista, but in 7, it becomes 
username-PC$ - so if the username is Fred, %username% is Fred in XP 
and Fred-PC$ in 7.  Of course, that breaks the batch file.  Am I 
doing something wrong or did MS really change this?

T