The vmware vcenter orchestrator server service on local computer started and then stopped

Hi

I am unable to start vco server service on Windows 2008 R2 machine. If i try restarting the service it shows the following error;

"The vmware vcenter orchestrator server service on local computer started and then stopped.Some services stop automatically when not in use by other services or programs".

Can anyone give me the solution for this?

Thanks

Radhika