Excerpted from message dated 09-04-94, David Noon to Murray Lesser:

DN>On Thursday, 1994-09-01  Murray Lesser wrote to Eric Schilke about
  >"PL/I" as follows:
  >
DN>ML>     I have the demo PL/I kit from DevCon and the "OS2 Online Book
  >ML> Collection" CD-ROM, which has some PL/I manuals.
  >
DN>The manuals on the Online Bookshelf CD-ROM are very old. They do not
  >address the multi-threading version of the run-time library.
  >
DN>If you buy PL/I for OS/2 "Personal Edition" or
"Professional Edition"
  >(there is a BIG difference in price) you will receive much newer
  >hard-copy manuals with the product. There is also sample code
  >included with the retail product. You will need to buy the PL/I
  >Toolkit as well to get the REXX interface (and PM interface, etc.)
  >include files.
  >

Hi David--

    I really don't care if the manuals don't handle multi-threading.  I
doubt that I will be using multi-threading for REXX external
functions.  However, it bothers me that you think I will have to buy
a new Toolkit.  I was hoping to translate the few API calls that I might
use to the PL/I format from either the C or ASM version that I already
have.  All my REXX (and C) programming is for text-mode utilities, so I
won't need the PM interface.  But, we shall see.

DN>The most recent introductory text I have seen on PL/I was published
  >in about 1978 or 1979. Its author was Robin A. Vowells,

I have asked my local public library to find and borrow it.  If I'm
lucky, if I like it, it will still be in print, and I will order it.
According to my bookseller (before receiving your reply) there are about
four PL/I texts still in print.  I didn't want to order one until I had
something to go on.

DN>If you need any help with PL/I syntax and semantics, I am more than
  >willing to assist you or anybody else and can be reached here on
  >FidoNet, on the IBM PCC BBS, or you can use Section 6 of OS2DF1 on
  >Compuserve to address problems directly to IBM Santa Teresa Labs (the
  >developers of the PL/I compiler).

Thanks.  I hope I won't have to bother you further.

               --Murray

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