I'm trying to modify the HKEY_CLASSES_ROOT\InternetShortcut\shell key in the registry to add a "Open with Chrome" entry so that I can right-click a shortcut and choose whether to open it in IE (default) or Chrome. I know how to create and write this type of key/command, I've done it successfully with other file types, but RegEdit keeps telling me I don't have the required permission to create a new subkey in this particular key. I've changed the permissions to give administrators full control of this key but it still throws me the same error. I changed the permissions likewise on the parent key HKEY_CLASSES_ROOT\InternetShortcut and can create a new subkey directly under that key but the same settings don't work on the shell subkey. Help...?