> -----Original Message-----
> From: gregarican [mailto:greg.kujawa / gmail.com] 
> Sent: Wednesday, September 21, 2005 9:47 AM
> 
> Afer having some issues with serialport-0.6 working in my Win2K/Ruby
> 1.8.2 environment I installed Win32Serial. I have checked out the
basic
> docs and worked with some sample code. What I am looking to do is use
> Win32Serial to sit on a serial port that's already in use and
passively
> monitor it. I know that if a serial port is in use certain
applications
> cannot access it. Has anyone already ventured in this area using the
> Win32Serial library? Just wondering if it is impractical to try to
have
> it passively monitor an active connection...

Does it have to be ruby?
http://www.sysinternals.com/Utilities/Portmon.html

Regards,
Yura.