I just installed NextPVR and your nDroid program. Initially, the service failed to install. I traced this initially to the batch file test on line 4 of the InstallService.bat :
It seems That this test matches
sc query state= all | find /I "nDroid Service"
in my system. So I changed Line 4 to Read
c:\Program Files (x86)\Beetec Services\nDroid Service>sc query state= all | find /I "nDroid"
DISPLAY_NAME: BlueStacks Android Service
this changed made the test for the "nDroid Serivce" case sensitive , bypassing the false positive hits against the two BlueStacks Android services this permitted the test to process correctly and the service installed properly.
sc query state= all | find "nDroid Service"
FWIW and HTH