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Markus Hildebrandt
17-02-2009, 02:56 PM
How can I find out which programm uses my COM1 port on XP?
I have some progams that need to use the COM1 serial port, but some other program in the backround seems to use COM1 and I have not been able to find out which one it is.
Does anyone have an idea?

dyewitness
17-02-2009, 03:16 PM
Portmon:
http://technet.microsoft.com/en-us/sysinternals/bb896644.aspx