I have been using both the tweetsharp and teeetinvi libraries to access Twitter. Unfortunately tweetsharp is no longer supported and the release version of tweetinvi does not (yet) fully support SSL/TDS. Twitter will require SSL/TDS (Restricting api.twitter.com to SSL/TLS traffic) effective January 14, 2014 with blackout testing on January 7, 2014.
Does anyone know of a library compatible with .Net (ideally C#) that fully supports SSL/TDS as well as the longer 64 bit user IDs in its released version?
you can try linqtotwitter and see if that works for you https://linqtotwitter.codeplex.com/