Use the FireWall's OnDiskManipulation event to control how to respond to manipulations on the disk sub-system.
If you are linking to a URL in your own application make sure you decorate the page or action with the FireWallDisabled attribute.
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2