Modular And Integrated Design (MAID) for Windows and OS/2 (visual Rexx GUI) and input/output function library.

Interface to the cURL package for access to URL-addressable resources such as web pages, ftp sites, and telnet sessions.

Interface to Curses, a Text-mode user interface.

Interface to manipulate simple graphics images.

Interface to ISAM files.

Interfaces to many SQL Databases.

Library for using the Tk GUI toolkit.

Rexx API translation library.

Build executable program from Rexx programs.

Rexx functions for Java.