Platform SDK: Security
VAB>Client Impersonation

VAB>Impersonation is the ability of a thread to execute using different security information than the process that owns the thread. Typically, a thread in a server application impersonates a client. This allows the server thread to act on behalf of that client to access objects on the server or validate access to the client's own objects.


VAB>The Microsoft® Windows® API provides the following functions to begin an impersonation:

VAB>A DDE server application can call the DdeImpersonateClient function to impersonate a client.
VAB>A named-pipe server can call the ImpersonateNamedPipeClient function.
VAB>You can call the ImpersonateLoggedOnUser function to impersonate the security context of a logged-on user's access tokVAB>