RegistryKey rk = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, “pvn”);
            RegistryKey rkprograms = rk.OpenSubKey(@“Software\Microsoft\Windows\CurrentVersion\Uninstall”);
            foreach (string s in rkprograms.GetSubKeyNames())
            {
                listBox1.Items.Add(s);
            }