问题：
1.WinMain不能返回，其它函数都可以返回，VC6和VC7都试过了！
2.用CreateProcess创建的进程不能显示，任务管理器显示为SYSTEM！
3.case WM_HOTKEY不能收到消息！
4.VC7怎么优化（就是生成的程序小）？
代码如下：
#include <windows.h>
#include <winsvc.h>

#define HOMEKEY 1008

STARTUPINFO si;
BOOL bServiceRunning;
HANDLE hEvent,hThread;
PROCESS_INFORMATION pi;
SERVICE_STATUS ServiceStatus;
SERVICE_STATUS_HANDLE ServiceStatusHandle;

DWORD WINAPI Service(LPVOID lpParam)
{
        MessageBox(NULL,"服务成功启动!","提示",MB_DEFAULT_DESKTOP_ONLY);
        while(bServiceRunning) Sleep(500);
        return 0;
}

void WINAPI ServiceCtrlHandler(DWORD dwControlCode)
{
        switch(dwControlCode)
        {
        case WM_HOTKEY:
                MessageBox(NULL,"收到热键消息！","提示",MB_DEFAULT_DESKTOP_ONLY);
                        break;
        case SERVICE_CONTROL_SHUTDOWN:
        case SERVICE_CONTROL_STOP:
                ServiceStatus.dwWin32ExitCode=0;
                ServiceStatus.dwCurrentState=SERVICE_STOP_PENDING;
                ServiceStatus.dwCheckPoint=1;
                ServiceStatus.dwWaitHint=1000;
                SetServiceStatus(ServiceStatusHandle,&ServiceStatus);
               
                bServiceRunning=FALSE;
                SetEvent(hEvent);

                ServiceStatus.dwCurrentState=SERVICE_STOP;
                ServiceStatus.dwCheckPoint=0;
                ServiceStatus.dwWaitHint=0;
                SetServiceStatus(ServiceStatusHandle,&ServiceStatus);
                break;
        default: break;
        }
        return;
}

void WINAPI ServiceMain(DWORD dwArgc, LPTSTR *lpszArgv)
{
        DWORD dwThreadId;
        ServiceStatusHandle=RegisterServiceCtrlHandler("NT Service",(LPHANDLER_FUNCTION)ServiceCtrlHandler);
        if(!ServiceStatusHandle) return;
       
        ServiceStatus.dwServiceType=SERVICE_WIN32_OWN_PROCESS;
        ServiceStatus.dwCurrentState=SERVICE_START_PENDING;
        ServiceStatus.dwControlsAccepted=SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN
                | SERVICE_ACCEPT_PAUSE_CONTINUE;
        ServiceStatus.dwServiceSpecificExitCode=0;
        ServiceStatus.dwWin32ExitCode=0;
        ServiceStatus.dwCheckPoint=2;
        ServiceStatus.dwWaitHint=1000;
       
        SetServiceStatus(ServiceStatusHandle,&ServiceStatus);

        if(!(hEvent=CreateEvent(NULL,TRUE,FALSE,NULL)))  return;

        ServiceStatus.dwCurrentState=SERVICE_START_PENDING;
        ServiceStatus.dwCheckPoint=1;
        ServiceStatus.dwWaitHint=1000;
        SetServiceStatus(ServiceStatusHandle,&ServiceStatus);
               
        ZeroMemory(&si,sizeof(STARTUPINFO));
        ZeroMemory(&pi,sizeof(PROCESS_INFORMATION));
        si.cb=sizeof(STARTUPINFO);
        si.dwFlags=STARTF_USESHOWWINDOW;
        si.wShowWindow=SW_SHOW;
        if(CreateProcess("F:\\扫描工具\\KillBox.exe",NULL,NULL,NULL,FALSE,CREATE_SUSPENDED | NORMAL_PRIORITY_CLASS,NULL,"F:\\扫描工具",&si,&pi))
                MessageBox(NULL,"启动进程失败！","提示",MB_DEFAULT_DESKTOP_ONLY);
        if(RegisterHotKey((HWND)GetCurrentThread(),HOMEKEY,NULL,VK_HOME))
                MessageBox(NULL,"注册热键失败！","提示",MB_DEFAULT_DESKTOP_ONLY);
        ResumeThread(pi.hThread);

        if(!(hThread=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)Service,(LPVOID)0,0,&dwThreadId))) return;
        bServiceRunning=TRUE;

        ServiceStatus.dwCurrentState=SERVICE_RUNNING;
        ServiceStatus.dwCheckPoint=0;
        ServiceStatus.dwWaitHint=0;
        SetServiceStatus(ServiceStatusHandle,&ServiceStatus);

        UnregisterHotKey((HWND)GetCurrentThread(),HOMEKEY);
        WaitForSingleObject(hEvent,INFINITE);
        UnregisterHotKey((HWND)GetCurrentThread(),HOMEKEY);
        CloseHandle(hEvent);
        CloseHandle(hThread);
        return;
}

int WINAPI WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
        SERVICE_TABLE_ENTRY servicetable[]={
                {"NT Service",(LPSERVICE_MAIN_FUNCTION)ServiceMain},
                {NULL,NULL}
        };
        if(StartServiceCtrlDispatcher(servicetable))
                MessageBox(NULL,"StartServiceCtrlDispatcher返回!","提示",MB_DEFAULT_DESKTOP_ONLY);
        return 0;
}

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