Check Adobe Reader is installed or not (c#)

using namespage  Microsoft.Win32;   

you can check  adobe reader installed or not in your system 

  RegistryKey adobe = Registry.LocalMachine.OpenSubKey("Software").OpenSubKey("Adobe");

            if (adobe != null)

            {

                RegistryKey acroRead = adobe.OpenSubKey("Acrobat Reader");

                if (acroRead != null)

                {

                    Process.Start(path + database.Name + ".pdf");

                }

            }

            else

            {

                System.Windows.MessageBox.Show("Please install acrobat reader for viewing PDF", "Information Message", MessageBoxButton.OK, MessageBoxImage.Information);

            }