public static void speckOnWin7(string text)，在win7中读文字

public static void speckOnWin7(string text)
{    //洪丰写的，转载请注明
try
{
string lsSource = "";
//if (File.Exists(Application.StartupPath + "\Error.txt"))
// lsSource = File.ReadAllText(Application.StartupPath + "\Error.txt");
//string lsT = " ************************************************************* " + DateTime.Now.ToString() + " " + CommInfo.UserId + " " + CommInfo.UserName + " ************************************************************* ";

string ls_vbs_string=@"CreateObject(""SAPI.SpVoice"").Speak """+text+@"""";
File.WriteAllText(Application.StartupPath + "\as_speck" + ".vbs", ls_vbs_string, Encoding.GetEncoding("GBK")); //+ DateTime.Now.ToString()
System.Diagnostics.Process.Start(Application.StartupPath + "\as_speck.vbs");

}
catch (Exception ei)
{
return;
}
}