Port-scanner.exe -

A port scanner works by sending requests to specific ports on a host and analyzing the responses to determine their status:

Using the PortQry command-line tool - Windows Server | Microsoft Learn Port-Scanner.exe

: A firewall or other security device is blocking the request, making it impossible to determine the status. Security Warnings A port scanner works by sending requests to

: Versions like Advanced_Port_Scanner_2.5.3869.exe are common Win32 executables. Functionality of Port Scanners though the host is reachable.

The most frequent association with this filename is , developed by Famatech.

: No application is listening, though the host is reachable.