> OpenIPC source code is released under one of the most simple open source license agreements, MIT License, giving users express permission to reuse code for any purpose, even as part of a proprietary software. We only ask you politely to contribute your improvements back to us. We would be grateful for any feedback and suggestions.

Edit: since people are arguing with me, the text I quoted is right of the main page for OpenIPC, and everything here is MIT licensed too: https://github.com/OpenIPC