Hi, I'm member of group which support around 500 servers, We have a big problem with expired certificate. Sometimes we can't find expired certificate before impact users or services. unfortunately there is no document for certificates. We have either self sign or internal or 3rd party certificates. our environment is pure Windows 2003/2008/R2. I'm wondering if Microsoft have any solution or product to support certificate administration? cheers,

The best option to cover all types of certificates is if you are already using the system center products to have a look at the PKI Certificate Verification MP http://www.systemcentercentral.com/PackCatalog/PackCatalogDetails/tabid/145/IndexID/24860/Default.aspx, the MP conatins a full set of inventory reports to help you audit certificates. /Hasain