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.
Executable Lockdown
PA File Sight Pro
HitmanPro
Winpooch
KakaSoft USBSecurity
Windows USB Blocker
Antirun
AV EAGLE
Repellent
Wi-Free
Privatefirewall
jPDFSecure
USB Flash Security
Check Point Endpoint Security
NoVirusThanks Anti-Rootkit Free
Abacre Antivirus
Doors Firewall
Autorun Angel
Disconnect
ClamWin Free Antivirus
VIPRE
Vidis Lite
Ekran System
Lockdown Plus PC
COMODO Internet Security Pro
Universal Shield
KeyLemon
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.