You can use the REXX under MVS/ESA, VM/ESA, VSE/ESA, OS/2 and DOS/V J7.0
You can get the information from the follwing site.
http://www.hurslay.ibm.com/rexx/
http://www.teamos2.org/
netnews://comp.lang.rexx/
ftp://rexx.uwaterloo.ca/
ftp://ftp.cdrom.com/
ftp://hobbes.nmsu.edu/
VSE/ESA Home-page
VSE/ESA Mailing list
Green Egg Report
Leo Langevin's VSE Web Page
Eric Loriaux's System/390 MVS,VM,VSE
VSE/ESA
VM Home-page
CMS Pipelines
Miscellaneous VM/CMS Software Package
VM user group
RED BOOK
SaSPA Software Solution
GUIDE
SHARE
JX
(C) Copyright 1996, H.Ochi 1996.08.16 Modified