From TDN

Codeweaver (previously known as TorqueDev) is a freeware TorqueScript development environment. It can be downloaded from TorqueDev.com

From the site: "In today's development environment, it's crucial that developers be able to utilize the best tools available to accomplish their tasks. Today's world is about results, and Codeweaver helps you achieve those results. Created for coders, by coders, Codeweaver is a fully-fledged integrated development environment. It includes member completion on both the object and variable level, and Infopopâ„¢ tooltips for function completion."