On vista, WMI win32_tpm only provides management functions such as IsEnabled, TakeOwnership... butno NV functions to create/write NV index, right? If I want to create/write NV index, i need using more complex TPM Base Services (TBS) or a vendor-provided TPM Software Stack (TSS) to make development easier, right? Did I miss other useful tool on vista? I really appreciateany comments. Thanks in advance.

Hi, Please click the link below. All methods of the Win32_Tpm Class are listed there. And you can find out if they can meet your requirement. Win32_Tpm Classhttp://msdn2.microsoft.com/en-us/library/aa376484.aspx By the way, for information on support for MSDN Subscriptions, please use the MSDN Subscriber Support, which could be the best resource for your question. MSDN Subscriber Supporthttp://msdn2.microsoft.com/en-us/subscriptions/aa948874.aspx Thanks. Sincerely, Yog Li Microsoft Online Community Support