wmi study

http://blogs.technet.com/b/heyscriptingguy/archive/2007/07/25/how-can-i-create-a-new-wmi-namespace-under-the-root-namespace.aspx?Redirected=true

http://blogs.technet.com/b/smsandmom/archive/2007/08/30/how-to-extend-your-hardware-inventory-using-the-sms-def-mof-file.aspx

http://blogs.msdn.com/b/rslaten/archive/2007/03/23/adding-custom-data-to-wmi-as-a-low-rights-user-and-having-sms-collect-that-data.aspx

wmi custom namespace/class creation/deletion via script/mof