Here is a handy link to download Microsoft’s WMI Code Creator Tool:
This is a great little application that lets you explore the WMI class libraries and automatically creates the WMI VB Script (or even .NET) for you. It is the most useful tool I have encountered so far for working with WMI. The fact that it’s free is also very helpful.
Overall, no matter how much you know about working with WMI, this tool has something to offer… from automatic code generation, to browsing the local computer’s WMI Namespaces, to automatically executing your scripts.