An implementation of the the ANSI Standard REXX Programming Language, available for most operating systems.
QTMAGEAR is an LGPL library for producing QuickTime MIDI movies and SMF(Standard Midi Files). The goal is to produce various alternate implementations (C/C++/PHP/Realbasic) so that developers can incorporate it into diverse development architectures.
GCI is the Generic Call Interface for REXX interpreters. GCI allows REXX programmers access to all shared libraries (aka DLLs) where there are no REXX-specific wrappers.
YAM - The E-mail client for Amiga computers
YAM (short for Yet Another Mailer) is a commonly used MIME-compliant Internet mailer written for AmigaOS computers. It supports POP3, SMTP, TLSv1/SSLv3, multiple users, PGP, hierarchical folders, filters, a configurable GUI, an ARexx interface and more...