CH>Does anyone have any source (preferably Pascal, but ASM or C that I can 
CH>compile to an OBJ and link in Pascal is fine) to make a DOS application give 
CH>up time slices under OS/2 2.1?

Try this ASM code.  I assume you are using the 32 bit OS2.LIB library
and calling it from a 32 bit flat model program. Call it with the name
SLEEP and no arguments.
----------CUT HERE----------CUT HERE----------CUT HERE----------CUT HERE
.386

_text   segment dword   use32   public  'CODE'

assume  cs:_text,ds:_text,es:_text
extrn   dossleep:near

public  sleep
SLEEP   proc    near

push    1
call    dossleep
add     esp,4
ret

sleep   endp

_text   ends

end
----------CUT HERE----------CUT HERE----------CUT HERE----------CUT HERE

or this C code.  I tested this with Borland C++ for OS/2 v1.5.
----------CUT HERE----------CUT HERE----------CUT HERE----------CUT HERE
#define INCL_DOSPROCESS
#include 
void sleep(void)
{
        DosSleep(1L);
}
----------CUT HERE----------CUT HERE----------CUT HERE----------CUT HERE
These actually produce identical code at the assembly language level.
---
 * MR/2 2.0 #99 * Internet: XTJX59A{at}PRODIGY.COM   RIME: ->7   Prodigy: XTJX59A

--- QScan v1.131b / 01-0169