Removing ZoneIDs from downloaded files

If you are like me, you are constantly removing the ZoneID from files downloaded from the internet using the following approach:

Right-click File > Properties > Unblock

Thanks to this post from Raymond Chen's excellent The Old New Thing blog, I've found a way to remove the need to do this at all.

Group Policy editor
User Configuration > Administrative Templates > Windows Components > Attachment Manager > enable Do not preserve zone information in file attachments