Just realized that sc.exe doesn't work if the exe wasn't programmed to run as a service (which BTSync apparently isn't). As has been explained early in this thread the trick is to use srvany.exe (found in the Windows Server 2003 resource kit on Microsofts homepage, it works also with newer versions of Windows) Use "sc " to create a new service that launches "srvany " (e.g. sc create MyService binPath= C:\Windows\System32\srvany.exe DisplayName= "MyService" ) Using RegEdit : create a "Parameters " key for your service (e.g. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MyService\Paramaters\ ) Using RegEdit : within the newly created "Parameters " key , create a string value called "Application " and enter the full path to the BTSync application. (No quotes required.) In the Service manager right click on your new service, choose properties and enter the user credentials for the user which BT Sync is installed under. Start your service and cross your fingers!