Does rsyslog run under Windows?¶

Short answer: No, rsyslog does not run natively on Microsoft Windows. It is developed and supported as a POSIX / Linux (and related UNIX-like) system component.

Alternatives¶

Native Windows syslog solution: WinSyslog

WinSyslog is a commercial product by Adiscon, the primary sponsor of rsyslog. It is maintained by the same engineering team that builds rsyslog and provides a rich feature set:
- Extensive syslog receive / forward / store capabilities
- Powerful filtering and routing similar to rsyslog’s flexibility
- Support for many of the same networking and protocol features
- Commercial support options; purchasing licenses directly helps fund ongoing rsyslog development
If you need a production-grade, well-supported solution on native Windows, WinSyslog is the recommended path.
Windows event log integration and relay: rsyslog Windows Agent The rsyslog Windows Agent (by Adiscon) provides integration with the native Windows Event Log and can forward (relay) events to rsyslog or other syslog endpoints.
- Focused on collection and forwarding from Windows
- Can act as a syslog relay to an rsyslog server
- Not a full syslog server on Windows: it is not intended to write locally to files or databases on Windows
Run rsyslog via a Linux environment on Windows (WSL)

You can install a Linux distribution side-by-side with Windows using the `Windows Subsystem for Linux (WSL) <https://learn.microsoft.com/windows/wsl/>`_. WSL provides a genuine Linux userland with real process semantics and networking. Inside that environment rsyslog operates just like on a standard Linux host.

Typical capabilities of WSL relevant to rsyslog:
- Access to Linux package managers (e.g. apt, dnf) so you can install rsyslog
- Standard TCP/UDP networking for forwarding and receiving syslog traffic
- Ability to run background services (WSL2 supports systemd in recent Windows builds; earlier versions can run rsyslog under a service wrapper)
Caveats:
- WSL adds an additional layer – operational maturity with Linux is advised
- Integration with native Windows event logs still requires a bridging component (e.g. the rsyslog Windows Agent or other exporters)
- Performance for very high-volume logging may differ from a dedicated Linux server
This approach is only recommended when your organization already has Linux expertise and you explicitly need rsyslog’s Linux-centric feature set.

Summary¶

rsyslog itself targets Linux/UNIX platforms. For native Windows deployments use WinSyslog. If your goal is to collect Windows Event Log and relay to rsyslog, use the rsyslog Windows Agent. Where Linux know-how exists and hybrid setups are acceptable, running rsyslog inside WSL is a viable alternative that preserves its full functionality.

Support: rsyslog Assistant | GitHub Discussions | GitHub Issues: rsyslog source project

Contributing: Source & docs: rsyslog source project