ComPortInfo for Windows

Overview of ComPortInfo

ComPortInfo is a small Windows utility for inspecting and managing serial (COM) ports. Originally extracted from the ComPortMan suite, it runs as a standalone program and is intended to give clear, actionable details about connected serial devices and their settings.

Capabilities at a Glance

• Reveals per-port information such as which application last accessed the port and the port’s current status — useful when diagnosing conflicts.
• Displays hardware capabilities and default parameters, for example supported signal lines and maximum data rates.
• Offers two viewing modes so you can list COM ports and their connection types in different formats.
• Allows safe removal and restart of devices when launched with administrator rights, helping to recover misbehaving hardware.
• Can reset USB ports on a range of Windows releases to restore connectivity without a full reboot.
• Functions independently of other tools (standalone) after being split off from the original ComPortMan package.

Technical Details

ComPortInfo exposes both software and hardware-level details useful for troubleshooting serial connections. Typical information available includes default baud rates and parity settings, supported modem/control signals, and the identity of the process that most recently opened a given COM port. That combination of status and capability data helps pinpoint whether an issue is configuration-related or hardware-related.

Who Benefits Most

Technicians, embedded developers, and advanced users who work with serial devices will find the tool particularly helpful. It’s aimed at people who need precise control over serial interfaces, quick diagnostics, and options to reset or restart ports without interrupting other system components.

Alternative Suggestion

If you need a different solution, consider the Microsoft Office File Converter Pack (free) as an alternative distribution item depending on your environment and requirements.