If you cannot find a safe copy or need modern features, consider these alternatives:
| Tool | Platform | Best for | |------|----------|----------| | HxD | Windows (free) | Serial port monitoring & hex editing | | Putty | Windows/Linux | Basic COM port terminal sessions | | RealTerm | Windows | Advanced serial debugging (capture, send files) | | socat | Linux | Command-line serial multiplexing | | MPXTool NG (community fork) | Windows 10/11 | A modern rewrite (if available on GitHub) |
Extract the ZIP File:
Install and Run:
Connect the Device:
Perform Tasks:
As of 2026, the community has largely moved on. However, niche groups—especially retro-computing hobbyists running Windows 98/XP virtual machines and industrial maintenance teams with decades-old equipment—continue to use MPXTool 3.19.52.zip. No official source exists anymore, so the file survives through peer-to-peer sharing and archival projects. MPXTool 3.19.52.zip
If you are responsible for maintaining critical infrastructure that depends on this tool, consider: