I would like to connect multiple users to a database. How can I do that?

In the multi user environment you should not have more than 3 users working with a Microsoft Access database. Use a MS-SQL or MySQL database if you plan on working with Xpert-Timer with more than three users. You can choose the type of database in your installation wizard.

Choose "For multiple users" -> Network installation. This way Xpert-Timer is installed on a shared network drive. All users can start the xperttimer.exe file on the network drive. This makes it much easier to update the software later on. There's no need of installing Xpert-Timer on every single computer.