OK, I'm going to try this one last time, because IBM seems to have a habbit
of changing it's pages for no apparent reason and without any warning.
Yesterday morning I again found the download site for PL/1 for OS/2.
This is how I got there:
http://www.software.ibm.com/ad/pli  notice I included the 'com' this time!
click  SHOP on the menu bar at the bottom
chick  SOFTWARE on the menu bar at the top
chick  APPLICATION DEVELOPMENT   i forget where, but it there on the page
activate SEARCH   In the search box type "Visual Age PL/1 Personal"
and click the arrow pointing at an angle.
This should get you to the download and purchase page for PL/1 for OS/2
and Windows.
But I give no guarantees, because, like I said, IBM seems to change its
Web Site pages randomly, at any time. You're not the only one I've given
the address for IBM PL/1 for OS/2 to, so I'm getting complaints about
"where is it?" from several people. Believe me, this is the LAST time
I ever give someone an address on the IBM site!
Now, I have found a free PL/1 compiler, thanks to the PL/1 Resources Page.
But its ancient and only useful for learning.
First you go to the PL/1 Resources site:
http://www.users.bigpond.com/robin_v/resource.htm   ( no L on htm )
click Digital Reseach    you go to the offical CP/M site
click PL/I for DOS
Then download three files. You need all three. 
plisamp.zip   pli_dos.zip    plilib2.zip
This compiler dates back to the early 80's. It was written by Digital
Research, the company that IBM screwed in favour of Microsoft way back
when IBM first entered the PC market. 
I have run this free compiler ( for personal use only ) in DOS. It seems
to work. Compile the demo, pli demo.pli, then you have to link it,
link86 demo.obj. Then you can run the demo.  Hope it works for you!

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