1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:

function ServiceStop(Machine, ServiceName: string): Boolean;
// Machine is UNC path or local machine if empty
var
  h_manager, h_svc: SC_Handle;
  ServiceStatus: TServiceStatus;
  dwCheckPoint: DWORD;
begin
  h_manager := OpenSCManager(PChar(Machine), nil, SC_MANAGER_CONNECT);
  if h_manager > 0 then
  begin
    h_svc := OpenService(h_manager, PChar(ServiceName),
      SERVICE_STOP or SERVICE_QUERY_STATUS);
    if h_svc > 0 then
    begin
      if (ControlService(h_svc, SERVICE_CONTROL_STOP, ServiceStatus)) then
      begin
        if (QueryServiceStatus(h_svc, ServiceStatus)) then
        begin
          while (SERVICE_STOPPED <> ServiceStatus.dwCurrentState) do
          begin
            dwCheckPoint := ServiceStatus.dwCheckPoint;
            Sleep(ServiceStatus.dwWaitHint);
            if (not QueryServiceStatus(h_svc, ServiceStatus)) then
              // couldn't check status
              break;
            if (ServiceStatus.dwCheckPoint < dwCheckPoint) then
              break;
          end;
        end;
      end;
      CloseServiceHandle(h_svc);
    end;
    CloseServiceHandle(h_manager);
  end;

  Result := (SERVICE_STOPPED = ServiceStatus.dwCurrentState);
end;