Invantive Authenticator is operated from its window. Its command line carries one option, and one argument which is no option: the link of an account to register. Available from release 27.0. An option is written as `/name`. The forms `-name` and `--name` are accepted as well. Options are not case sensitive; an argument which is no option is read as a link. ## Asking for the Usage ``` Invantive.Authenticator.exe /help ``` The usage is written to the console of the shell that started the program. Invantive Authenticator is a windows application and has no console of its own, so it attaches to the one of the shell; when it is started without a shell, for instance from the Start menu, the usage is shown in a window instead. The program ends directly afterwards. `/?` and `/h` do the same, as do `-h` and `--help`. The usage lists exactly the options below: it is composed from the same declarations with which the product reads its command line, so the two can not drift apart. ## Registering an Account from a Link An argument which is no option is read as an `otpauth://` link and offered for registration as an account: ``` Invantive.Authenticator.exe "otpauth://totp/ACME%20BV:[email protected]?secret=..." ``` This is how the product is started when such a link is opened elsewhere on the device: the operating system hands the link over as the only argument. The link is put between double quotes, since it holds characters on which a shell would otherwise split it. See [[Register Accounts]] for the other ways in which an account is added. ## See Also - [[Invantive Authenticator/Installation|Installation]] - [[Register Accounts]] - [[Environment Variables]]