This plug-in for Vbulletin 3.5.x will give your users the option to zip any attachment they insert into a thread. Not only does this reduce the amount of data stored in your database, it also allows your users to upload virtually any file extension!
If used in conjunction with our scan viruses extension, you can not only save space in your database, but also ensure your users do not spread viruses on your forum.
Download here.