安装了CorelDraw，无法从注册表获得已安装了CorelDraw的displayname信息

用什么方法才能获取，用下面的方法无获取：

  public String[] SoftwareList()    

{      String[] softwareList = null;             //动态数组       

      ArrayList list = new ArrayList();         

    try          

   {      //打开注册列表卸载选项          

       RegistryKey Key = Microsoft.Win32.Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall");      

           if (Key != null)//如果系统禁止访问则返回null            

     {      foreach (String SubKeyName in Key.GetSubKeyNames())                     {         //打开对应的软件名称    

         RegistryKey SubKey = Key.OpenSubKey(SubKeyName);              

           if (SubKey != null)                     

    {        String SoftwareName = SubKey.GetValue("DisplayName", "Nothing").ToString();     //如果没有取到，则不存入动态数组       

   if (SoftwareName != "Nothing")         

                    {               list.Add(SoftwareName);                             }                         }           

}                     //强制转换成字符串数组，防止被修改数据溢出

softwareList = (string[])list.ToArray(typeof(string));    

             }            

}             catch (Exception err)          

   {          Console.WriteLine("出错信息:" + err.ToString());             }             　　 return softwareList;     

    }