Optional. String that specifies the user name to use while attempting to connect. This can be in the form of a user name ...

Optional. String that specifies the user name to use while attempting to connect. This can be in the form of a user name or Domain\\Username. Leave it blank to use the current logged-on user name. The strUser parameter should only be used with connections to remote WMI servers. If you attempt to specify strUser for a local WMI connection, the connection attempt fails.