Catfood Cleat
Cleat sends tweets from the Windows command line.

Cleat supports multiple Twitter accounts and will automatically truncate tweets that are over 140 characters. You can use Cleat to schedule tweets, tweet when a task completes or just when you want to share something without leaving the DOS prompt.
After installation you'll find Cleat in Program Files\Catfood Cleat, or Program Files (x86)\Catfood Cleat on 64-bit systems. You may want to add this folder to the PATH environment variable for convenience after installation.
Cleat sets the ERRORLEVEL to 0 on success and other values on failure. You can use this to test if a tweet was sent successfully if you use Cleat in a batch file.
New in 1.10: Support for geolocation and adding a timestamp to the tweet.
