In answer to your original question, the front end communicates with the back end through Access's linking mechanism. To link manually, open your front end (containing all onjects except tables), click on File/Import external data/link, browse to your back end (containing only tables), and select all. When the process is complete you should see icons indicating linked tables (arrows indicate the links) appear in the tables tab of your front end.<br>
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If you are going to put this on the server, and your users use a different drive letter to map to the folder that you use, you can relink using the virtual address. Click on Tools/Add-Ins/Link Manager, select all and click on the checkbox at the bottom, click on the Advanced button and key in the path (beginning with