Using protocol handlers as a ultra thin layer of integration

RegistryCode.cs

RegistryKey helpDesk = Registry.ClassesRoot.CreateSubKey("HelpDesk");
helpDesk.SetValue("", "URL:HelpDesk Protocol");
helpDesk.SetValue("URL Protocol", "");

RegistryKey defaultIcon = helpDesk.CreateSubKey("DefaultIcon");
defaultIcon.SetValue("", Path.GetFileName(Application.ExecutablePath));

RegistryKey shell = helpDesk.CreateSubKey("shell");
RegistryKey open = shell.CreateSubKey("open");
RegistryKey command = open.CreateSubKey("command");
command.SetValue("", Application.ExecutablePath + " %1");