Service does not start

Service does not start

I created a Windows service with Delphi and used two method to install,
start and stop. Method 1 if i install this service using commandline
C:\MyService\ServiceApp.exe /Install it installed successfully and i can
start and stop too in the service console.
Method 2 but if i install the same service with different name using sc
e.g. sc create myservice binpath= c:\MyService\ServiceApp.exe I see it is
installed but i can not start the service using service console as well as
with sc start myservice
when i do query using SC , result are as follows
C:\Windows\system32>sc query myservice
SERVICE_NAME: myservice TYPE : 10 WIN32_OWN_PROCESS STATE : 2
START_PENDING (NOT_STOPPABLE, NOT_PAUSABLE, IGNORES_SHUTDOWN)
WIN32_EXIT_CODE : 0 (0x0) SERVICE_EXIT_CODE : 0 (0x0) CHECKPOINT : 0x0
WAIT_HINT : 0x7d0
up till now i was using /Install but i want to install same service
multiple times with different names, I got this idea of using from this
post. (How to install a windows service from command line specifying name
and description?) can anybody explain difference of behavior between
/Install and SC?