All additional source code files and modifications to the source code of the original QuakeC compiler from id Software are licensed under the terms of the GPL (gnu public license), see the gnu.txt. The source code of the original QuakeC compiler from id Software can be found at: ftp://ftp.idsoftware.com/idstuff/source/qcc.tar.gz or ftp://ftp.idsoftware.com/idstuff/source/q1tools_gpl.tgz date: 2000 June 16th MrE,