Sysinternals' Portmon: Error 2

user_16032 0
Viewed 59505

When I try to connect to local ports, Computer -> Connect local, using Portmon v. 3.02, I'm getting an error message, Error 2, in a small error dialog box:

Enter image description here

I run the tool as an administrator (if not, I get error 6).

By the way this is a Windows 7 x64. On 32-bit, in Windows 7 x86, it works fine. How can I fix this problem?

serial-port
10 Answers

Instead of portmon for Windows x64, you can use an emulator of a pair of virtual COM ports and a simple program that will connect the physical port and one of the virtual ones, as well as perform the logging function.

To create a pair of virtual COM ports you can use:

  • com0com (preferably version "com0com-2.2.2.0-x64-fre-signed", because it contains signed x64 driver)
  • Virtual Serial Ports Emulator (VSPE), every time it starts on x64 it asks to purchase a driver, but it works even if you refuse.

Simple mapping and logging program can be found e.g. here or you can write it yourself, it is simple.

The sequence of actions is follows:

  • Сreate a pair of virtual COM ports using emulator (for example, COM28 and COM29)
  • Let the external device be connected to the computer COM1 port. In the program, whose exchange with external device we want to listen to, we set up a port COM28 (instead of СОМ1) for communication.
  • In the mapping program, we set up that we want to bind and log ports COM1 and COM29 (don't forget to set the port baud rate).
user_38514310

Instead of Portmon you can also use the IO Ninja program with the "Serial Monitor" plugin.

It gives a little less information than Portmon, but in a more understandable form. The main thing is, just like a Portmon, it allows you to see the data that is transmitted between a third-party application and an external device via a serial port. The program works under modern versions of Windows (I tried it myself on Windows 10 x64). The aforementioned plugin "Serial Monitor" is paid (but has an evaluation period).

Note: the port that you want to monitor must first be connected to the "IO Ninja" program, and then opened in a third-party application whose exchange with an external device you want to track.

user_38514310
Related