自己写的Windows服务为什么无法启动

[time_is_life]

从msdn上拷贝了一个例子，最简单的Windows服务。
编译后运行SampleService.exe install后服务被成功安装了。
但是当启动这个服务的时候，报如下的错误:

Windows could not start the SampleService service on Local Computer.
Error 1067: The process terminated unexpectedly.

请大侠们指点，谢谢。如下是代码：

// SampleService.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include "Windows.h"
#include <strsafe.h>

#pragma comment(lib, "advapi32.lib")

#define SVCNAME TEXT("SampleService")
#define SVC_ERROR 11


SERVICE_STATUS          gSvcStatus; 
SERVICE_STATUS_HANDLE   gSvcStatusHandle; 
HANDLE                  ghSvcStopEvent = NULL;

VOID SvcInstall(void);
VOID WINAPI SvcCtrlHandler( DWORD ); 
VOID WINAPI SvcMain( DWORD, LPTSTR * ); 

VOID ReportSvcStatus( DWORD, DWORD, DWORD );
VOID SvcInit( DWORD, LPTSTR * ); 
VOID SvcReportEvent( LPTSTR );



int _tmain(int argc, _TCHAR* argv[])
{
	// If command-line parameter is "install", install the service. 
    // Otherwise, the service is probably being started by the SCM.

    if( lstrcmpi( argv[1], TEXT("install")) == 0 )
    {
        SvcInstall();
        return 0;
    }

    // TO_DO: Add any additional services for the process to this table.
    SERVICE_TABLE_ENTRY DispatchTable[] = 
    { 
        { SVCNAME, (LPSERVICE_MAIN_FUNCTION) SvcCtrlHandler }, 
        { NULL, NULL } 
    }; 
 
    // This call returns when the service has stopped. 
    // The process should simply terminate when the call returns.

    if (!StartServiceCtrlDispatcher( DispatchTable )) 
    { 
        SvcReportEvent(TEXT("StartServiceCtrlDispatcher")); 
    } 

	return 0;
}

//
// Purpose: 
//   Installs a service in the SCM database
//
// Parameters:
//   None
// 
// Return value:
//   None
//
VOID SvcInstall()
{
    SC_HANDLE schSCManager;
    SC_HANDLE schService;
    TCHAR szPath[MAX_PATH];

    if( !GetModuleFileName( NULL, szPath, MAX_PATH ) )
    {
        printf("Cannot install service (%d)\n", GetLastError());
        return;
    }

    // Get a handle to the SCM database. 
 
    schSCManager = OpenSCManager( 
        NULL,                    // local computer
        NULL,                    // ServicesActive database 
        SC_MANAGER_ALL_ACCESS);  // full access rights 
 
    if (NULL == schSCManager) 
    {
        printf("OpenSCManager failed (%d)\n", GetLastError());
        return;
    }

    // Create the service

    schService = CreateService( 
        schSCManager,              // SCM database 
        SVCNAME,                   // name of service 
        SVCNAME,                   // service name to display 
        SERVICE_ALL_ACCESS,        // desired access 
        SERVICE_WIN32_OWN_PROCESS, // service type 
        SERVICE_DEMAND_START,      // start type 
        SERVICE_ERROR_NORMAL,      // error control type 
        szPath,                    // path to service's binary 
        NULL,                      // no load ordering group 
        NULL,                      // no tag identifier 
        NULL,                      // no dependencies 
        NULL,                      // LocalSystem account 
        NULL);                     // no password 
 
    if (schService == NULL) 
    {
        printf("CreateService failed (%d)\n", GetLastError()); 
        CloseServiceHandle(schSCManager);
        return;
    }
    else printf("Service installed successfully\n"); 

    CloseServiceHandle(schService); 
    CloseServiceHandle(schSCManager);
}

//
// Purpose: 
//   Entry point for the service
//
// Parameters:
//   dwArgc - Number of arguments in the lpszArgv array
//   lpszArgv - Array of strings. The first string is the name of
//     the service and subsequent strings are passed by the process
//     that called the StartService function to start the service.
// 
// Return value:
//   None.
//
VOID WINAPI SvcMain( DWORD dwArgc, LPTSTR *lpszArgv )
{
    // Register the handler function for the service

    gSvcStatusHandle = RegisterServiceCtrlHandler( 
        SVCNAME, 
        SvcCtrlHandler);

    if( !gSvcStatusHandle )
    { 
        SvcReportEvent(TEXT("RegisterServiceCtrlHandler")); 
        return; 
    } 

    // These SERVICE_STATUS members remain as set here

    gSvcStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS; 
    gSvcStatus.dwServiceSpecificExitCode = 0;    

    // Report initial status to the SCM

    ReportSvcStatus( SERVICE_START_PENDING, NO_ERROR, 3000 );

    // Perform service-specific initialization and work.

    SvcInit( dwArgc, lpszArgv );
}

//
// Purpose: 
//   The service code
//
// Parameters:
//   dwArgc - Number of arguments in the lpszArgv array
//   lpszArgv - Array of strings. The first string is the name of
//     the service and subsequent strings are passed by the process
//     that called the StartService function to start the service.
// 
// Return value:
//   None
//
VOID SvcInit( DWORD dwArgc, LPTSTR *lpszArgv)
{
    // TO_DO: Declare and set any required variables.
    //   Be sure to periodically call ReportSvcStatus() with 
    //   SERVICE_START_PENDING. If initialization fails, call
    //   ReportSvcStatus with SERVICE_STOPPED.

    // Create an event. The control handler function, SvcCtrlHandler,
    // signals this event when it receives the stop control code.

    ghSvcStopEvent = CreateEvent(
                         NULL,    // default security attributes
                         TRUE,    // manual reset event
                         FALSE,   // not signaled
                         NULL);   // no name

    if ( ghSvcStopEvent == NULL)
    {
        ReportSvcStatus( SERVICE_STOPPED, NO_ERROR, 0 );
        return;
    }

    // Report running status when initialization is complete.

    ReportSvcStatus( SERVICE_RUNNING, NO_ERROR, 0 );

    // TO_DO: Perform work until service stops.

    while(1)
    {
        // Check whether to stop the service.

        WaitForSingleObject(ghSvcStopEvent, INFINITE);

        ReportSvcStatus( SERVICE_STOPPED, NO_ERROR, 0 );
        return;
    }
}

//
// Purpose: 
//   Sets the current service status and reports it to the SCM.
//
// Parameters:
//   dwCurrentState - The current state (see SERVICE_STATUS)
//   dwWin32ExitCode - The system error code
//   dwWaitHint - Estimated time for pending operation, 
//     in milliseconds
// 
// Return value:
//   None
//
VOID ReportSvcStatus( DWORD dwCurrentState,
                      DWORD dwWin32ExitCode,
                      DWORD dwWaitHint)
{
    static DWORD dwCheckPoint = 1;

    // Fill in the SERVICE_STATUS structure.

    gSvcStatus.dwCurrentState = dwCurrentState;
    gSvcStatus.dwWin32ExitCode = dwWin32ExitCode;
    gSvcStatus.dwWaitHint = dwWaitHint;

    if (dwCurrentState == SERVICE_START_PENDING)
        gSvcStatus.dwControlsAccepted = 0;
    else gSvcStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;

    if ( (dwCurrentState == SERVICE_RUNNING) ||
           (dwCurrentState == SERVICE_STOPPED) )
        gSvcStatus.dwCheckPoint = 0;
    else gSvcStatus.dwCheckPoint = dwCheckPoint++;

    // Report the status of the service to the SCM.
    SetServiceStatus( gSvcStatusHandle, &gSvcStatus );
}

//
// Purpose: 
//   Called by SCM whenever a control code is sent to the service
//   using the ControlService function.
//
// Parameters:
//   dwCtrl - control code
// 
// Return value:
//   None
//
VOID WINAPI SvcCtrlHandler( DWORD dwCtrl )
{
   // Handle the requested control code. 

   switch(dwCtrl) 
   {  
      case SERVICE_CONTROL_STOP: 
         ReportSvcStatus(SERVICE_STOP_PENDING, NO_ERROR, 0);

         // Signal the service to stop.

         SetEvent(ghSvcStopEvent);
         ReportSvcStatus(gSvcStatus.dwCurrentState, NO_ERROR, 0);
         
         return;
 
      case SERVICE_CONTROL_INTERROGATE: 
         break; 
 
      default: 
         break;
   } 
   
}

//
// Purpose: 
//   Logs messages to the event log
//
// Parameters:
//   szFunction - name of function that failed
// 
// Return value:
//   None
//
// Remarks:
//   The service must have an entry in the Application event log.
//
VOID SvcReportEvent(LPTSTR szFunction) 
{ 
    HANDLE hEventSource;
    LPCTSTR lpszStrings[2];
    TCHAR Buffer[80];

    hEventSource = RegisterEventSource(NULL, SVCNAME);

    if( NULL != hEventSource )
    {
        StringCchPrintf(Buffer, 80, TEXT("%s failed with %d"), szFunction, GetLastError());

        lpszStrings[0] = SVCNAME;
        lpszStrings[1] = Buffer;

        ReportEvent(hEventSource,        // event log handle
                    EVENTLOG_ERROR_TYPE, // event type
                    0,                   // event category
                    SVC_ERROR,           // event identifier
                    NULL,                // no security identifier
                    2,                   // size of lpszStrings array
                    0,                   // no binary data
                    lpszStrings,         // array of strings
                    NULL);               // no binary data

        DeregisterEventSource(hEventSource);
    }
}

[赵4老师]

用调试器(OD,WINDBG等)调试服务程序 To debug the initialization code of a service application, the debugger must be attached when the service is started. This is accomplished by creating a registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ProgramName The ProgramName is the image file for the service application you are debugging. Do not specify a path. For example, the ProgramName might look like MyService.exe. Under this key create a string data value called Debugger. The value of this string should be set to the full path of the debugger that will be used. For example, c:\Debuggers\windbg.exe In addition to setting this registry key, the service application must be marked as "interactive". This allows your service to interact with the desktop, and allows the debugger window to appear on your desktop. This again requires modifying a registry key: you must bitwise-or the type entry for your service with 0x100 (this is the value for SERVICE_INTERACTIVE_PROCESS according to Winnt.h). The exact location and name of this registry entry varies. For example: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MyServiceKey Finally, you need to adjust the service application timeout. Otherwise, the service application will kill the debugger within 20 seconds after starting. Adjusting the timeout involves setting an entry in the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control Under this key, create a DWORD data value called ServicesPipeTimeout. Set this entry to the amount of time in milliseconds that you want the service to wait before timing out. For example, 60,000 is one minute, while 86,400,000 is 24 hours. 设置ServicesPipeTimeout后需要重启系统才生效 Now, when the service is started, the debugger will also start. When the debugger starts, it will stop at the initial process breakpoint, before the service has begun running. This allows you to set breakpoints or otherwise configure your debugging session to let you monitor the startup of your service. Another option is to place calls to the DebugBreak function in your service from the point at which you would like to break into the debugger. (For more information, see DebugBreak in the Platform SDK documentation.) If your service is running with other services in a Service Host Process, you may need to isolate the service into its own Service Host Process.

[oyljerry]

先看你的代码跑到什么位置了，多加一些日志输出等，看服务启动后发生了什么