CommWatch.exe is a specialized serial communication software commonly used to control and test professional audio-visual (AV) equipment, such as HDMI matrix switchers and KVM hubs. It allows users to send RS232 or TCP/IP commands to a device and monitor the feedback in real-time.

2. High CPU or Memory Usage

Cause: A memory leak in an older version of SoftEther VPN (pre-2018). Also, if you have a "packet logging" feature enabled, commwatch.exe will write logs continuously, consuming CPU cycles.

1. Stop the process: via Task Manager (if running).
2. Disable associated service: sc stop CryptoComm (service name may vary).
3. Delete file(s): Remove from its location.
4. Check startup entries:

   The name stands for "Communication Watch Executable." Its primary job is to monitor network communications, manage dial-up or broadband connections, and often facilitate "connection sharing" features—allowing one computer to share its internet connection with another device, such as a laptop, gaming console, or smartphone.