C#实现读取注册表监控当前操作系统已安装软件变化的方法

private static HybridDictionary GetSoftName(){ string strSoftName = string.Empty; HybridDictionary hdSoftName = new HybridDictionary(); /*对注册表节点"Software/Microsoft/Windows/CurrentVersion/Uninstall"下的内容进行操作。 RegistryKey Registry 为注册表操作类*/ using (RegistryKey key = Registry.LocalMachine.OpenSubKey(@"Software/Microsoft/Windows/CurrentVersion/Uninstall", false)) {  if (key != null)  {   foreach (string keyName in key.GetSubKeyNames())   {    using (RegistryKey key2 = key.OpenSubKey(keyName, false))    {     if (key2 != null)     {      string softwareName = Convert.ToString(key2.GetValue("DisplayName"));//获取DisplayName,如存在值，则系统中安装有该软件      //string installLocation = key2.GetValue("InstallLocation", "").ToString();//软件安装路径      if (!string.IsNullOrEmpty(softwareName))      {       if (!hdSoftName.Contains(softwareName))       {        hdSoftName.Add(softwareName, string.Empty);//将软件名作为集合的key       }      }     }    }   }  } } return hdSoftName;}