This program uses error correcting protocols to send/receive files over a dial-in serial port from a variety of programs running under PC-DOS, CP/M, Unix, and other operating systems. lrzsz is derived from the last unrestricted verison of Chuck Forsberg's rzsz package. lrzsz is covered under the GNU copyleft. WWW: http://www.csl-gmbh.net/uwe/lrzsz.html