Gets the user's portal login token for authenticating with the portal or other servers through the PRC package (Plumtree.Remote.PRC). The endpoint required to create a remote session can be obtained from ISearchContext.SoapURI. The login token will not be sent unless the checkbox "Send Login token to Portlets" option is selected on the Advanced Settings page of the Search Web Service Editor. The login token timeout is set on the same editor page.
See GetTokenContext for PRC Authentication via login token.
LoginToken
GetUserLocale