| Tool | Platform | Supports USB? | Free | |------|----------|---------------|------| | (Eltima) | Windows 10/11 (x64) | Yes | No | | Free Serial Port Monitor (HHD Software) | Windows 10/11 | Yes | Yes (limited) | | com0com + Wireshark | Windows (x64) | Yes | Yes | | socat (Linux) + Serial to network | Cross-platform | Yes | Yes | | PySerial + logging wrapper | Any Python | Yes | Yes |
In the language of the Windows Operating System, Error 2 translates to portmon error 2
: Some users report success by running the tool in Windows XP (Service Pack 3) compatibility mode , though this often results in a "grayed out" Ports menu on newer systems. | Tool | Platform | Supports USB
The app froze. Alex looked at the Portmon log. It was short, brutal, and highlighted in angry red text: Alex looked at the Portmon log
Running Portmon from a network share or a protected system folder can break its ability to locate files. Ensure portmon.exe is saved directly on your (e.g., C:\Tools\Portmon.exe ) before launching. Modern Alternatives for 64-Bit Windows
: Another lightweight software alternative often used for troubleshooting.