--- title: IKeymanKeyboardLanguagesInstalled2::Add Method --- ## Introduction The `IKeymanKeyboardLanguagesInstalled2::Add` adds an entry to the in-memory list in preparation for registration and installation with the functions in the [`IKeymanKeyboardLanguageInstalled2`](../IKeymanKeyboardLanguageInstalled2) interface. ## Specification ``` clike IKeymanKeyboardLanguagesInstalled Add(string Bcp47Tag) ``` ## Parameters `Bcp47Tag` : The BCP 47 tag to associate the keyboard with. Windows will normalize these codes so after installation you may find the layout available under a normalized code and not the one you expected.