Start the control panel using “Run as administrator”. Need to stop the module you want to install as a service, then click the “Service” check-box on the left and answer “yes” to the message that pops-up. Unfortunately it doesn’t work for Filezilla for some reason.
src - http://stackoverflow.com/a/23573310
origin - http://www.pipiscrew.com/?p=6390 run-xampp-as-service