Windows Management Instrumentation (WMI) is a set of extensions to the Windows Driver Model that provides an operating system interface through which instrumented components provide information and notification.
A useful source of information for configuring the access rights in the WMI namespaces of the remote machine is given in the Microsoft knowledge base article
, another useful resource is the article on troubleshooting WMI related issues (http://support.microsoft.com/default.aspx?scid=kb;en-us;875605)

