name is an invalid user or group name.
You typed an invalid user name or group name.
Check the spelling of the user or group name. To see a list of existing users, type NET USER. To see a list of existing local groups, type NET LOCALGROUP. To see a list of existing global groups, type NET GROUP, if you are running Windows 2000 Server. If you are running Windows 2000, type NET GROUP /domain. The Windows 2000 workstation must be a member of a domain that is running Windows 2000 Server. Otherwise, you will see a message that tells you that NET GROUP is a Windows 2000 Server command only.