Excerpted from message dated 12-04-95, Marc Williams to All:

MW>I have a friend who programs for dos in baisc.  QB, PDS, etc.  Is
  >there a relatively painless way for him to port his code over to OS/2
  >32 bit?  He's game to look at anything.

Hi Marc--

    PDS will compile (text mode only) and link for 16-bit OS2 (actually,
for OS/2 1.0).  Microsoft called it "protected mode" at the time.  Works
fine if you haven't included some assembled subroutines that break the
OS/2 rules.  If your friend works hard enough, he can even make calls on
the OS/2 1.0 API using the "SRC" files furnished with the compiler.
These programs will run under OS/2 2.x and Warp, because of the smart
OS/2 2.0 architects who built in the tiled memory just for that purpose.

    However, I have found that most well-behaved BASIC PDS programs
compiled for DOS run just as well in an OS/2 VDM, without requiring any
further effort.

          --Murray

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