To set up a data source:

Open ODBC Administrator.

Click System DSN if you want this data source to be available to all the users on this computer. Click User DSN to make this data source available only to the user currently logged in to this computer.

Click the Add button and choose a driver from the list of configured drivers, and then click OK.

In the window that appears, type a name for this data source and a description.
If the driver you selected has its own data source configuration panel, follow the instructions provided in the panel.

Click the Add button to create placeholders in the Key and Value columns.

Double-click the placeholders to type your own keys and values, and then click OK.

To save any changes before closing the window, click Apply.