Quitter is a Twitter client app that runs in a command window (or "DOS window") on Windows 2000/XP/Vista and requires Microsoft .NET Framework version 2.0 or higher. There's no installer and no entries in the Start Menu; it’ll run from a thumbdrive. It's a single small EXE file (about 105k) and it stores its settings in a small XML file. With Quitter, you can: Read, post, reply and retweet, Organize the people you follow into groups and read tweets by group, Filter (or highlight) tweets from specific users or that contain certain #hashtags, Use URL shorteners like TinyUrl.com for tweeting URLs, Easily open tweeted links from other users in your default browser (no copy/paste needed), Send and receive direct messages, Follow or unfollow other users.
More info: Quitter