Info-ZIP's Zip 2.1: generic C sources 
Complete C source code for Info-ZIP's 
PKZIP-compatible archiver, for all supported 
compilers and platforms (Unix, OS/2, MS-DOS, 
NT, VMS, Amiga, Atari, etc.), plus lots of 
cool documentation. This is FREE (but 
copyrighted) software. See README for details 
on distribution and reuse.