Quality of Service Quality of Service Client programs can use the RpcBindingSetAuthInfoEx function rather than the RpcBindingSetAuthInfo function to create an authenticated binding. This structure contains information about the quality of service. Specifically, the information in this structure allows client programs to set the security services provided to the distributed application.
Client programs can also specify the identity tracking and select the impersonation type.
In addition, client programs can use it to validate the RPC version number. By default, the Kerberos protocol SSP authenticates both the client and the server. The default for all other SSPs that Microsoft provides is to authenticate the client to the server, but not to authenticate the server to the client. This constant specifies that the SSP will validate the remote procedure call even if the certificate authority that issued the client's authentication certificate is not in the SSP's root certificate store. The default is to reject the certificate if the SSP does not recognize the certificate authority.