: No application is listening, though the host is reachable.
A file named is typically a standalone executable application designed to scan network devices for open ports. Because "Port-Scanner.exe" is a generic name, it can refer to legitimate network administration tools or, in some cases, malicious software disguised as a utility. Common Applications Port-Scanner.exe
: A firewall or other security device is blocking the request, making it impossible to determine the status. Security Warnings : No application is listening, though the host is reachable