Stops a currently active service on the network.
HRESULT IADsServiceOperations::Stop(void);
 This method supports the standard return values E_FAIL and E_UNEXPECTED, as well as the following:
  Windows NT:  Use version 4.0 and later. 
  Windows CE:  Unsupported.
  Header: Declared in iads.h.
IADsService, ADSI Service Object