syncthing/etc/windows/syncthingservice.xml

<service>
  <id>Syncthing</id>
  <name>Syncthing</name>
  <description>This service runs Syncthing</description>
  <executable>syncthing.exe</executable>
  <arguments>-home .\ServiceHome -no-console -no-browser</arguments>
  <logmode>rotate</logmode>
</service>