Please try this OCX control: CMSComm, and registered COM
when install windows.
I think it very easy use COM in delphi.
DOS mode, I had mastered the COM port, and had program a pair to
send/receiver file. if you really want to know why, or realy want to
use DOS, please contract me.
Hi,
I don't think it is necessary to use
asm language to design the communition application.
I think you can use the createfile writefile readfile
to deal the stardard device file "com1" or "com2"
it is very simple way to implement it.