Install TimeClock Server (only once!) on a computer that remains running for all of your time clock clients to access.
Install the Pro Client or User Client on computers you want to use as a time clock or to manage your time clock.
The TimeClock Server is the hub that hosts your database for all of your clients. It runs as a background service whenever the computer turned on.
The Pro Client connects to the Server and functions as a time clock. Administrative features are available to admins & managers via their password.
The User Client connects to the Server and functions as a time clock. No administrative features are available.