crc16v??.arc contains two crc16 programs. One for IBM, one for A8. The two programs can be used to check the integrity of file transfers (especially recommended for 'util' transfers). They are both fairly easy to use. The ACTION! A8 source code is included (.ATA file). The IBM program is a freeware program, I don't have source for it. Russ Gilbert cb541@cleveland.freenet.edu (10/97)