[comp.windows.ms] COM in WIN3.0

reilly@bnlux0.bnl.gov (kevin reilly) (10/04/90)

I have a DOS program that modifies the COM1 port. When I run the program
from Windows 3.0 in enhanced mode the modifications fail to occur. The 
routine where the modification takes place is written in Assembler and
linked in-line with the larger C progranm using QuickC.
When I run the program in Windows 3,. in standard and real mode it works
fine.
What gives? Am I doing somehting wrong? Is a pif file necessary?
Thank you very much!

reilly@bnlux0.bnl.gov