You may want to take a look at:

ftp://ftp.lsoft.com/listserv/WINDOWS/CONTRIB/options.rexx

-- 
Francoise Becker

There is only one LISTSERV(R) -- the product that launched the 
email list communication industry in 1986. To discover the 
story behind LISTSERV, visit:
http://www.lsoft.com/corporate/20anniversary.asp