Antivirus
No matter how safe you may feel without an antivirus, it definitely is a must-have application these days. And it's a good thing those come for both general purposes and things of more particular nature, like safe Internet surfing. This category gives you numerous antiviruses to choose from.
Doors Firewall
Autorun Angel
Disconnect
ClamWin Free Antivirus
VIPRE
Vidis Lite
Ekran System
Lockdown Plus PC
COMODO Internet Security Pro
Universal Shield
KeyLemon
UsbFix By El Desaparecido
NetQin Mobile Antivirus 5.0 NEW
Access Administrator Pro
Norton Personal Firewall
OpenDNS Updater
LaCie PC Lock
GeSWall Freeware
DotFix NiceProtect
Advanced Anti Spy
The Cleaner 2012
W32 Autorun Worm Removal
FileASSASSIN
Actual Spy
Stronghold Antivirus
eConceal Firewall Pro for Windows
PC Security
FortiClient Lite
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.