WSL/doc/docs/technical-documentation/wslrelay.exe.md

# Wslrelay.exe

`wslrelay.exe` is a windows executable that is used to relay network and debug console traffic from Linux to Windows. 

It is responsible for:

- Relaying localhost traffic between Linux and Windows in NAT mode (see [localhost](localhost.md))
- Displaying the debug console output when `wsl2.debugConsole` is set to `true`

See `src/windows/wslrelay/main.cpp`
Initial open source commit for WSL. Many Microsoft employees have contributed to the Windows Subsystem for Linux, this commit is the result of their work since 2016. The entire history of the Windows Subsystem for Linux can't be shared here, but here's an overview of WSL's history after it moved to it own repository in 2021: Number of commits on the main branch: 2930 Number of contributors: 31 Head over https://github.com/microsoft/WSL/releases for a more detailed history of the features added to WSL since 2021. 2025-05-15 12:09:45 -07:00			`# Wslrelay.exe`

			`wslrelay.exe` is a windows executable that is used to relay network and debug console traffic from Linux to Windows.

			`It is responsible for:`

			`- Relaying localhost traffic between Linux and Windows in NAT mode (see [localhost](localhost.md))`
			- Displaying the debug console output when `wsl2.debugConsole` is set to `true`

			See `src/windows/wslrelay/main.cpp`