AIPC is open source under GPL and free to use.

Folloing codes are also licensed under MAME License(2007)
  - src/8913.cpp
  - src/6821.cpp
  
The original source codes are follows:
  - licenses/src/ay8910.c
  - licenses/src/ay8910.h
  - licenses/src/6821pia.c
  - licenses/src/6821pia.h

================================================================================
GNU GENERAL PUBLIC LICENSE version 3
  - licenses/GPLv3.txt

MAME LICENSE (2007)
  - licenses/MAME.txt
