in windows installation guide:
https://airsonic.github.io/docs/install/windows/#installing-airsonic-as-windows-service
line:
Arguments = -Dairsonic.home="C:\\Program Files\\Airsonic" -Dserver.port=4040
should be:
Arguments = -Dairsonic.home="C:\\Program Files\\Airsonic" -Dserver.port=4040 -jar airsonic.war
or service isn't start