what version of windows are you using?
As an alternate you can use the 'net' command line program. This should work on win 2000 and up

the command is:
NET USER
[username * options] /DOMAIN
username {password | *} /ADD options /DOMAIN
username /DELETE /DOMAIN

This didnt display entirely so use your command line interface to see it:
'net help user'
the system perl command can get this done for you nice and quickly without modules