Hi Szilard, Well, i don't know how to do it by myself, however, maybe these websites can help a bit: http://www.lvr.com/serport.htm[^] http://www.eltima.com/products/virtual_drivers/[^] Best regards, Chris
SZ, Two things: (*) The message has been dual posted. (*) The message may not befit this category (Visual Studio Issues). You may need to have this in C++ rather. Vasudevan Deepak Kumar Personal Web: http://www.lavanyadeepak.tk/ I Blog At: http://www.dotnetjunkies.com/weblog/deepak/
http://deepakvasudevan.blogspot.com/
http://deepak.blogdrive.com/
there is a program that allows you to do just that, and it's free. That program is called: "PortMon" and it comes in a suite of moitoring software such as FileMon, RegMon etc. ---- www.muzikstor.com