Hello, I have written several credential providers, which all work well, and I am facing the problem of Remote Desktop Connection. using client 6. The credential provider on the local station displays its tiles and packages the credentials correctly for the CREDUI scenario, I think (unpackaging them using CredUnPackAuthenticationBuffer in a RunAs tool is OK). The problem resides on the remote station, I was expecting my remote credential provider filter to receive something as input in the UpdateRemoteCredential function, but this function is called with empty fields (the input CREDENTIAL_PROVIDER_CREDENTIAL_SERIALIZATION structure shows only null input). And further the SetSerialization function of my remote credential provider is not called at all. Can anyone help me understand what I have done wrong, and make te remote desktop connection process clear to me? Anne