This policy setting allows you to manage whether users can install Active Desktop items from this zone. The settings for ...

This policy setting allows you to manage whether users can install Active Desktop items from this zone. The settings for this option are: If you enable this policy setting, users can install desktop items from this zone automatically.

If you select Prompt in the drop-down box, users are queried to choose whether to install desktop items from this zone.

If you disable this policy setting, users are prevented from installing desktop items from this zone. 

If you do not configure this policy setting, users are prevented from installing desktop items from this zone.