c++设置开机时自动运行

void CMainFrame::EnableAutoStart()//设置程序自动开机运行
{
     CString sPath;
     int nPos;
     HKEY RegKey;
     GetModuleFileName(NULL,sPath.GetBufferSetLength(MAX_PATH+1),MAX_PATH);
     sPath.ReleaseBuffer();
     nPos=sPath.ReverseFind('\\');
     sPath=sPath.Left(nPos);
     CString lpszFile=sPath+"\\YbkDemo.exe";
     CFileFind fFind;
     BOOL bSuccess;
     bSuccess=fFind.FindFile(lpszFile);
     fFind.Close();
     if(bSuccess)
     {
         CString fullName;
         fullName=lpszFile;
         RegKey=NULL;
         RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&RegKey);
         RegSetValueEx(RegKey,"彭水白云监控系统",0,REG_SZ,(const unsigned char*)(LPCTSTR)fullName,fullName.GetLength());
         this->UpdateData(FALSE);
     }
     else
     {
         ::AfxMessageBox("没找到执行程序，自动运行失败");
         exit(0);
     }