SC_HANDLE Helppp!

Can anyone tell me why the following piece of code gives an error of undeclared identifier for the SC_HANDLE declarations?

Code:

---

unsigned char StartPortTalkDriver(void)
{
    SC_HANDLE  SchSCManager;
    SC_HANDLE  schService;

    BOOL      ret;
    DWORD      err;

    /* Open Handle to Service Control Manager */
    SchSCManager = OpenSCManager (NULL,                        /* machine (NULL == local) */
                                  NULL,                        /* database (NULL == default) */
                                  SC_MANAGER_ALL_ACCESS);      /* access required */
                       
    if (SchSCManager == NULL)
      if (GetLastError() == ERROR_ACCESS_DENIED) {
        /* We do not have enough rights to open the SCM, therefore we must */
        /* be a poor user with only user rights. */
        printf("PortTalk: You do not have rights to access the Service Control Manager and\n");
        printf("PortTalk: the PortTalk driver is not installed or started. Please ask \n");
        printf("PortTalk: your administrator to install the driver on your behalf.\n");
        return(0);
        }

    do {
        /* Open a Handle to the PortTalk Service Database */
        schService = OpenService(SchSCManager,        /* handle to service control manager database */
                                  "PortTalk",          /* pointer to name of service to start */
                                  SERVICE_ALL_ACCESS);  /* type of access to service */

        if (schService == NULL)
            switch (GetLastError()){
                case ERROR_ACCESS_DENIED:
                        printf("PortTalk: You do not have rights to the PortTalk service database\n");
                        return(0);
                case ERROR_INVALID_NAME:
                        printf("PortTalk: The specified service name is invalid.\n");
                        return(0);
                case ERROR_SERVICE_DOES_NOT_EXIST:
                        printf("PortTalk: The PortTalk driver does not exist. Installing driver.\n");
                        printf("PortTalk: This can take up to 30 seconds on some machines . .\n");
                        InstallPortTalkDriver();
                        break;
            }
        } while (schService == NULL);

    /* Start the PortTalk Driver. Errors will occur here if PortTalk.SYS file doesn't exist */
   
    ret = StartService (schService,    /* service identifier */
                        0,            /* number of arguments */
                        NULL);        /* pointer to arguments */
                   
    if (ret) printf("PortTalk: The PortTalk driver has been successfully started.\n");
    else {
        err = GetLastError();
        if (err == ERROR_SERVICE_ALREADY_RUNNING)
          printf("PortTalk: The PortTalk driver is already running.\n");
        else {
          printf("PortTalk: Unknown error while starting PortTalk driver service.\n");
          printf("PortTalk: Does PortTalk.SYS exist in your \\System32\\Drivers Directory?\n");
          return(0);
        }
    }

    /* Close handle to Service Control Manager */
    CloseServiceHandle (schService);
    return(TRUE);
}

---

many thanks
Bazzz


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>>SC_HANDLE
Did you #include whatever file contains that definition?