Bracket Trader

Bracket Trader is a powerful API (application programming interface) front-end to control Interactive Broker's Trader Workstation (TWS).

The program just duplicates what you do manually to manage your trades but does it faster and eliminates human "mechanical" errors in your trading.
Exit orders are automatically sent the moment a trade entry is filled. The exit is sent as a pair of OCA (one cancels all) orders, with one on the profit side, and one on the stop loss side.