Fairport ~ PSTSDK

Authors
 Terry Mahaffey
 GOFF Concepts LLC

Licensing
 PSTSDK is distributed under the Apache v2.0 License. Fairport is based on PSTSDK, but any and all Fairport modifications to are licensed under the GPL v3. If you require an Apache licensed library, you can either stick with PSTSDK proper or contact me directly about alternative licensing for Fairport.

Source
 http://terrymah.github.io/Fairport/