XPRZModem.library is an Amiga shared library (with full Lattice C source code) which provides ZModem file transfer capability to any XPR-compatible communications program. The XPR external protocol standard describes an interface method which allows various file transfer protocols to be implemented as Amiga shared libraries which may then be used interchangeably in any compatible communications program. This takes a heavy load off of the comm program author, who no longer has to support scads of different file transfer protocols (many of which are quite tricky to code) in their program in order to make it widely useful and popular. The comm program is also smaller and more efficient as a result, since all those obscure protocols (you know, the ones *you* don't need) are no longer taking up space. The XPR standard also helps users, who can mix and match their favorite file transfer protocols (and implementations thereof) with their favorite comm programs. And when new protocols are invented, the user simply plugs in a new library, and voila!, it's ready to use. Hopefully, making protocols easy to support will allow more and better comm programs to be written, as authors can concentrate on their programs instead of constantly re-inventing the wheel. Version 3.1 include new features and bugs fix. Author: Rainer Hess