MFC第三方软件打开文件

if (PathFileExists(path))

{

CString tempStr;

tempStr.Format("shell32.dll,OpenAs_RunDLL %s",path);

int isError=(int)ShellExecute(NULL, "open", "rundll32.exe ", tempStr, "", SW_SHOW);

if (isError<32)

{

MessageBox("相应文件打开失败","提示");

}

}

else

{

MessageBox("文件路径有误！");

}