Comments by Tieske8 (Top 3 by date)

Reason for my vote of 5
Thats a must-have shortcut on my desktop!

Firewalls that verify the contents by analysing the attachments structure will stop this one, renaming extensions is very common these days, so firewalls have been adapted to this but its a rather expensive operation (performance).
The only one that I never got stuck with (before using the coded document) was using a word document and then inserting and 'object from file', displayed as an icon. But it had to be 2 objects, and the first one was still checked by the firewall, so it had to be an 'allowed' filetype and the second one would then be the 'payload' in zip format.