__declspec(dllexport)   void   __stdcall   testlogon(DWORD   unknow)
  {
        //到临时目录下查找文件login.log,
        //1.如果找到，查看该文件的修改时间
        //2.没有则创建一个空文件，并且执行一个创建OutLook Appointment 的程序
        char tempPath[80];
        char fileName[] = "login.log";
        int i = 0;
        DWORD len;
        FILE * FileHandle;
        struct tm *newtime;
        STARTUPINFO si;
        PROCESS_INFORMATION pi;
        ZeroMemory( &si, sizeof(si) );
        si.cb = sizeof(si);
        ZeroMemory( &pi, sizeof(pi) );
        ZeroMemory(tempPath,sizeof(tempPath));
        len = GetTempPath(sizeof(tempPath),tempPath);
        for(i = 0 ;i< sizeof(fileName);i++)
        {
            tempPath[i+len] = fileName[i];
        }

if(FileExists(tempPath) == 1)
        {
            //
            printf("login1");
            newtime = GetFileMofiedTime(tempPath);
            if( IsToday(*newtime) == 0)
            {
                //free(newtime);
                remove(tempPath);
            }
            else
            {
             //free(newtime);
            return 1;
         }
        }
        printf("login2");
//        Sleep(1000);
//        if(FileExists(tempPath) == 1)
//        {
//            FileHandle = fopen(tempPath,"r+");
//        }
//        else
        {
          FileHandle = fopen(tempPath,"w+");
        }
        if(FileHandle != NULL)
        {
            fwrite(".",1,1,FileHandle);
            fclose(FileHandle);
        }
        //MessageBox(NULL,"login3",tempPath,MB_OK);
        if(!CreateProcess(NULL,"NewAppoint.exe",NULL,NULL,FALSE,0,NULL,NULL,&si,&pi))
        {
          printf("login4");//,tempPath,MB_OK);
         return 1;
        }
        else
        {
            printf("login5");//"login5",tempPath,MB_OK);
             // Wait until child process exits.
             WaitForSingleObject( pi.hProcess, INFINITE );
             // Close process and thread handles.
             CloseHandle( pi.hProcess );
             CloseHandle( pi.hThread );
      }
        return 1;
  }

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\GoHome]
"DLLName"="LogIn.dll"
"Logon"="testlogon"
"Impersonate"=dword:00000001
"Asynchronous"=dword:00000001
"Unlock"="testlogon"

Microsoft.Office.Interop.Outlook.ApplicationClass outLookApp = new Microsoft.Office.Interop.Outlook.ApplicationClass();
            AppointmentItemClass appointItem = (AppointmentItemClass)outLookApp.CreateItem(OlItemType.olAppointmentItem);
            //appointItem
            appointItem.Location = "RPC";            
            appointItem.Subject = "It's time to go home";
            appointItem.Importance = OlImportance.olImportanceNormal;
            appointItem.Body = "Shark Xu.";
            appointItem.BusyStatus = OlBusyStatus.olOutOfOffice;
            appointItem.Duration = 1;
            appointItem.Start = System.DateTime.Now.AddHours(8.0);
            appointItem.ReminderMinutesBeforeStart = 1;
            appointItem.Sensitivity = OlSensitivity.olNormal;
            
            appointItem.Save();

copy Login.dll %SystemRoot%\System32\
copy newAppoint.exe %SystemRoot%\System32\
regedit /s GoHome.reg