Problem mit Service

[SCIPIO-AEMILIANUS]

Ich hab folgenden Code irgendwo im INet gefunden und hab ihn erstmal zum rumtüfteln und ausprobieren übernommen.

#include <windows.h>
#include <tchar.h>
#include <string>
using namespace std;

TCHAR* serviceName = TEXT("Beeper Service");
SERVICE_STATUS serviceStatus;
SERVICE_STATUS_HANDLE serviceStatusHandle = 0;
HANDLE stopServiceEvent = 0;

void WINAPI ServiceControlHandler( DWORD controlCode )
{
    switch ( controlCode )
    {
        case SERVICE_CONTROL_INTERROGATE:
            break;

        case SERVICE_CONTROL_SHUTDOWN:
        case SERVICE_CONTROL_STOP:
            serviceStatus.dwCurrentState = SERVICE_STOP_PENDING;
            SetServiceStatus( serviceStatusHandle, &serviceStatus );

            SetEvent( stopServiceEvent );
            return;

        case SERVICE_CONTROL_PAUSE:
            break;

        case SERVICE_CONTROL_CONTINUE:
            break;

        default:
            if ( controlCode >= 128 && controlCode <= 255 )
                // user defined control code
                break;
            else
                // unrecognised control code
                break;
    }

    SetServiceStatus( serviceStatusHandle, &serviceStatus );
}

void WINAPI ServiceMain( DWORD /*argc*/, TCHAR* /*argv*/[] )
{
    // initialise service status
    serviceStatus.dwServiceType = SERVICE_WIN32;
    serviceStatus.dwCurrentState = SERVICE_STOPPED;
    serviceStatus.dwControlsAccepted = 0;
    serviceStatus.dwWin32ExitCode = NO_ERROR;
    serviceStatus.dwServiceSpecificExitCode = NO_ERROR;
    serviceStatus.dwCheckPoint = 0;
    serviceStatus.dwWaitHint = 0;

    serviceStatusHandle = RegisterServiceCtrlHandler( serviceName, ServiceControlHandler );

    if ( serviceStatusHandle )
    {
        // service is starting
        serviceStatus.dwCurrentState = SERVICE_START_PENDING;
        SetServiceStatus( serviceStatusHandle, &serviceStatus );

        // do initialisation here
        stopServiceEvent = CreateEvent( 0, FALSE, FALSE, 0 );

        // running
        serviceStatus.dwControlsAccepted |= (SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);
        serviceStatus.dwCurrentState = SERVICE_RUNNING;
        SetServiceStatus( serviceStatusHandle, &serviceStatus );
        int num=0;
        do
        {
            keybd_event(VK_CAPITAL,0x45,KEYEVENTF_EXTENDEDKEY,0 );
            keybd_event(VK_CAPITAL,0x45,KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,0);
            Beep(1000,100);
        }
        while ( WaitForSingleObject( stopServiceEvent, 1000 ) == WAIT_TIMEOUT );

        // service was stopped
        serviceStatus.dwCurrentState = SERVICE_STOP_PENDING;
        SetServiceStatus( serviceStatusHandle, &serviceStatus );

        // do cleanup here
        CloseHandle( stopServiceEvent );
        stopServiceEvent = 0;

        // service is now stopped
        serviceStatus.dwControlsAccepted &= ~(SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);
        serviceStatus.dwCurrentState = SERVICE_STOPPED;
        SetServiceStatus( serviceStatusHandle, &serviceStatus );
    }
}

void RunService()
{
    SERVICE_TABLE_ENTRY serviceTable[] =
    {
        { serviceName, ServiceMain },
        { 0, 0 }
    };
   BOOL success;
      success = StartServiceCtrlDispatcher( serviceTable );
   if (!success )
   {
        MessageBox(
           NULL,    // handle of owner window
           "Oops should not see this!",    // address of text in message box
           "Beeper Service Error",    // address of title of message box
            MB_OK  |MB_TASKMODAL     // style of message box
           );
    }
}

void InstallService()
{
    SC_HANDLE serviceControlManager = OpenSCManager( 0, 0, SC_MANAGER_CREATE_SERVICE );

    if ( serviceControlManager )
    {
        char path[ _MAX_PATH + 1 ];
        if ( GetModuleFileName( 0, path, sizeof(path)/sizeof(path[0]) ) > 0 )
        {
            SC_HANDLE service = CreateService( serviceControlManager,
                            serviceName, serviceName,
                            SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS,
                            SERVICE_AUTO_START, SERVICE_ERROR_IGNORE, path,
                            0, 0, 0, 0, 0 );
            if ( service )
                CloseServiceHandle( service );
        }

        CloseServiceHandle( serviceControlManager );
    }
}

void UninstallService()
{
    SC_HANDLE serviceControlManager = OpenSCManager( 0, 0, SC_MANAGER_CONNECT );

    if ( serviceControlManager )
    {
        SC_HANDLE service = OpenService( serviceControlManager,
            serviceName, SERVICE_QUERY_STATUS | DELETE );
        if ( service )
        {
            SERVICE_STATUS serviceStatus;
            if ( QueryServiceStatus( service, &serviceStatus ) )
            {
                if ( serviceStatus.dwCurrentState == SERVICE_STOPPED )
                    DeleteService( service );
            }

            CloseServiceHandle( service );
        }

        CloseServiceHandle( serviceControlManager );
    }
}

int _tmain( int argc, TCHAR* argv[] )
{
    if ( argc > 1 && lstrcmpi( argv[1], TEXT("install") ) == 0 )
    {
        InstallService();
    }
    else if ( argc > 1 && lstrcmpi( argv[1], TEXT("uninstall") ) == 0 )
    {
        UninstallService();
    }
    else
    {
        RunService();
    }

    return 0;
}

So, nun kann ich das auch kompilieren und alles. Es piept auch schön wenn man es als Service startet. Nur mein keybd_event wird nicht ausglöst. Genauso geht auch nicht DrawText und so weiter. Wie kann ich das lösen?