True key key string extension extensions string path string shellex

508	Chapter 41 ■	Writing Context Menu Shell Extensions

if (guid.Length > 0)
{
RegistryKey key;

key = Registry.LocalMachine.OpenSubKey(“Software\\” +
“Microsoft\\” +
“Windows\\” +
“CurrentVersion\\” + “Shell Extensions\\” + “Approved”, true);
key.SetValue(guid,
String.Format(“{0} shell extension”, handlerName)); key.Close();

protected static void UnregisterExtension(System.Type type, string[] extensions, string handlerName) {
try
{
string guid = InterogateGuid(type);

if (guid.Length > 0)
{
RegistryKey key;