Disclosed are techniques for sharing user credentials between multiple client applications when connecting to a set of remote resources. The mechanism enables a single sign-on between a terminal server web access service and the remote applications, remote desktops and corresponding terminal servers accessible through the service. User credentials may be received by one of the client applications and passed to a credential store running as a local software object in association with the user's logon session. Further requests to launch a new remote connection may then pass through the credential store. Upon successful validation of the request, the credential store may attach user credential information to the request and pass the request to the requested client. The requested client may also execute as a software object associated with the current logon session. The client may then use the supplied credential for authentication to the requested resource or application.