Как запустить и остановить сервис (или получить его статус)

function ServiceStart(aMachine, aServiceName: string ): boolean;
// aMachine это UNC путь, либо локальный компьютер если пусто
var
h_manager,h_svc: SC_Handle;
svc_status: TServiceStatus;
Temp: PChar;
dwCheckPoint: DWord;
begin
svc_status.dwCurrentState := 1;
h_manager := OpenSCManager(PChar(aMachine), nil, SC_MANAGER_CONNECT);
if h_manager > 0 then
begin
h_svc := OpenService(h_manager, PChar(aServiceName),
SERVICE_START or SERVICE_QUERY_STATUS);
if h_svc > 0 then
begin
temp := nil;
if (StartService(h_svc,0,temp)) then
if (QueryServiceStatus(h_svc,svc_status)) then
begin
while (SERVICE_RUNNING <> svc_status.dwCurrentState) do
begin
dwCheckPoint := svc_status.dwCheckPoint;
Sleep(svc_status.dwWaitHint);
if (not QueryServiceStatus(h_svc,svc_status)) then
break;
if (svc_status.dwCheckPoint < dwCheckPoint) then
begin
// QueryServiceStatus не увеличивает dwCheckPoint
break;
end;
end;
end;
CloseServiceHandle(h_svc);
end;
CloseServiceHandle(h_manager);
end;
Result := SERVICE_RUNNING = svc_status.dwCurrentState;
end;
function ServiceStop(aMachine,aServiceName: string ): boolean;
// aMachine это UNC путь, либо локальный компьютер если пусто
var
h_manager, h_svc: SC_Handle;
svc_status: TServiceStatus;
dwCheckPoint: DWord;
begin
h_manager:=OpenSCManager(PChar(aMachine),nil, SC_MANAGER_CONNECT);
if h_manager > 0 then
begin
h_svc := OpenService(h_manager,PChar(aServiceName),
SERVICE_STOP or SERVICE_QUERY_STATUS);
if h_svc > 0 then
begin
if(ControlService(h_svc,SERVICE_CONTROL_STOP, svc_status))then
begin
if(QueryServiceStatus(h_svc,svc_status))then
begin
while(SERVICE_STOPPED <> svc_status.dwCurrentState)do
begin
dwCheckPoint := svc_status.dwCheckPoint;
Sleep(svc_status.dwWaitHint);
if(not QueryServiceStatus(h_svc,svc_status))then
begin
// couldn't check status
break;
end;
if(svc_status.dwCheckPoint < dwCheckPoint)then
break;
end;
end;
end;
CloseServiceHandle(h_svc);
end;
CloseServiceHandle(h_manager);
end;
Result := SERVICE_STOPPED = svc_status.dwCurrentState;
end;

function ServiceGetStatus(sMachine, sService: string ): DWord;
var
h_manager, h_service: SC_Handle;
service_status: TServiceStatus;
hStat: DWord;
begin
hStat := 1;
h_manager := OpenSCManager(PChar(sMachine) ,nil, SC_MANAGER_CONNECT);
if h_manager > 0 then
begin
h_svc := OpenService(h_manager,PChar(sService), SERVICE_QUERY_STATUS);
if h_svc > 0 then
begin
if(QueryServiceStatus(h_svc, service_status)) then
hStat := service_status.dwCurrentState;
CloseServiceHandle(h_svc);
end;
CloseServiceHandle(h_manager);
end;
Result := hStat;
end;