Automatically Startup Windows Service on Bootup

Question

Hi,

I would like to create a windows service which automatically starts on startup and calls my function.I dont want to use .NET support for this.
Using ATL I have taken a windows service project.I build it and registered the service using "/Service" which is then shown in Services with "Manual Startup type". I would want this to be automatic.
How should I go about it? For this while creating the service we need to specify "SERVICE_AUTO_START" flag. But this service creation is automatically done by the base class CAtlServiceModuleT.

SC_HANDLE hService = ::CreateService(
			hSCM, m_szServiceName, m_szServiceName,
			SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS,
			SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL,
			szFilePath, NULL, NULL, _T("RPCSS\0"), NULL, NULL);

Now How should I go about overriding the base class functions. I think I need to make use of _tWinMain() and override but Iam not sure of the approach.

Any suggestions or relevant links would be helpful

Thanks
Satya