Error 1075: The dependency service does not exist or has been marked for deletion.

I have installed AX4.0 perfectly.when i am going to start the service ,then its showing following error,

Error 1075: The dependency service does not exist or has been marked for deletion.

What may be the problem and can anybody help me get out of it ???

Check RPC (Remote Procedure Call) and MSSQLSERVER services are running or not.

yes it has started,but not able start the service for ax4.0