Net Use to Map Drive with Username & PW

I know this is an old subject becuase Windows 95 does not allow the /user: in the net use command.

But I need to map a drive to a server (AS/400 thats using Netserver) that requires a different username and password than the user logon.

The traditional:
net use x: \\server\share /user:username password
Does NOT work as we all know. Has anyone found a trick to getting this done???

Thanks a lot in advance!!!