Authenticating returning users using twitter url's


i am persisting settings like access token and secret in my windows phone so the user logins only once.even after the application exits.

the issue is i provide features like reply and retweet for users just like in web.i navigate to twitter urls using webbrowser control.this works as long as the user is signed in

when the application exits and user returns, i can fetch the access token.but for reply or retweet, the sign in is displayed again…

i have to pass the auth token using twitter url to complete the authenticiation before the reply navigation is initiated…i am not using a tweetsharp for this task though the library is in my project.can it be done?