Hi, I am using wbemtest to get Microsoft Office Communication Server 2007 contacts for a given user. I gave this query select SIPURI from MSFT_SIPESUserContactData where UserInstanceID='{23946E92-49E8-4000-95B8-294636C885CE}' Where userinstanceID is valid. I get "Provider is not capable of the attempted operation", WMI(0x80041024) error. I am able to get data using other WMI objects. Could you anybody advise why I get this error and a solution to overcome this error ?. Thanks