The StupidFilter is copyrighted by Rarefied Technologies, Inc. All rights not explicitly declared are reserved by the copyright holder. This software is distributed without warranty. Use it at your own risk. All source code files (.cpp and .h files in root directory) are open source and licenced under The GPL version 2.0, as defined in the included GPL text file. Data files (everything in the data/ directory) are licensed as Creative Commons Attribution-NonCommercial-ShareAlike 3.0 unported, as defined in the included CC text file. More lax license terms may be applied by Rarefied Technologies, Inc. at a later date, pending legal review. For more specific questions regarding licensing, please email project@stupidfilter.org. Thanks, The StupidFilter Team