## 18.12. Registering Event Log on Windows

To register a Windows event log library with the operating system, issue this command:

    regsvr32 pgsql_library_directory/pgevent.dll

This creates registry entries used by the event viewer, under the default event source named `PostgreSQL`.

To specify a different event source name (see event_source), use the `/n` and `/i` options:

    regsvr32 /n /i:event_source_name pgsql_library_directory/pgevent.dll

To unregister the event log library from the operating system, issue this command:

    regsvr32 /u [/i:event_source_name] pgsql_library_directory/pgevent.dll

### Note

To enable event logging in the database server, modify log_destination to include `eventlog` in `postgresql.conf`.