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.
LUPC
Metadefender Endpoint
Wondershare Time Freeze
USB Virus Cleaner
Windows Firewall Control
Vba32 AntiRootkit
Trend Micro Antivirus
Network Security Task Manager
WinSesame
K7AntiVirus
Panda Global Protection 2009
Quick Stego
Monitor Computer Usage Software
Disk Password Protection
InstallGuard
PDF Password Locker and Remover
Radix Reload Duo
Firewall Builder
File Process
RAR Key
Anti-Shortcut Virus Ultimate
GNU Privacy Guard
Ardamax Keylogger
ShortcutAntivirus
SX System Suite
The Cleaner
OpenOffice Impress Password Recovery
Advanced Security Level
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.