Forum Asking the user to register when opening attachment
 

When the visitor open the attachment, then it is showing
"Invalid Attachment specified. If you followed a valid link, please notify the administrator"

Instead i want to show the login page or register page.

Where to change?

By the way the registered members can download the files without any problem.

The reason i want this is, i want all the users to register before they download the file from my site. Since i have posted the attachment link outside VB.