The WinScard and SCRedir components, which were separate modules in operating systems earlier than Windows Vista, are now included in one module. This is possible because RDP redirector (rdpdr.sys) allows per-session, rather than per-process, context. The CryptoAPI processing is performed in the LSA (Lsass.exe). The authentication is performed by the LSA in session 0. In the remote session (labeled as 'Client session'), the user runs net use /smartcard.Īrrows represent the flow of the PIN after the user types the PIN at the command prompt until it reaches the user's smart card in a smart card reader that is connected to the Remote Desktop Connection (RDC) client computer. This scenario is a remote sign-in session on a computer with Remote Desktop Services. In a smart card sign-in scenario, the smart card service on the remote server redirects to the smart card reader that is connected to the local computer where the user is trying to sign in. In a Remote Desktop scenario, a user is using a remote server for running services, and the smart card is local to the computer that the user is using. If EFS is not able to locate the smart card reader or certificate, EFS cannot decrypt user files. That is, the connect attempt is not successful in Fast User Switching or from a Remote Desktop Services session.Įnabling Encrypting File System (EFS) to locate the user's smart card reader from the Local Security Authority (LSA) process in Fast User Switching or in a Remote Desktop Services session. A user is not able to establish a redirected smart card-based remote desktop connection.

Using Fast User Switching or Remote Desktop Services. Smart card support is required to enable many Remote Desktop Services scenarios. In these versions, smart card redirection logic and WinSCard API are combined to support multiple redirected sessions into a single process. The content in this topic applies to the versions of Windows that are designated in the Applies To list at the beginning of this topic. This topic for the IT professional describes the behavior of Remote Desktop Services when you implement smart card sign-in.

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