Free Computer Security Tools & Applications

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AS3 Personal Firewall (399 KB) is a device designed to prevent outsiders from accessing your network. Serves as the single entry point to your network and evaluates all TCP connections requests as they are received comparing them against user-defined rules. Freeware for Windows 98/ Me/ NT/ 2000/ XP.

Prisma Firewall (1.7 MB) is a professional firewall solution that protects your computer against intruders. It constantly adapts it's behavior based on network analysis to build the best defence. Freeeware for Windows 2000/ XP/ 2003.

Advanced StartUp Supervisor (939 KB) is a powerful utility for managing start-up applications and for removing spyware and viruses. Freeware for all Windows versions.

Computer Inspector (6.0 MB) analyzes and warns you about 3rd-party software installed on your computer. It shows what's running with full details and highlights any suspicious process. Helpful in identifying unwanted browser hijackers, toolbars, buttons, and context menus. Provides full details of all IE-related data, which can be vulnerable to attack from malicious applications. Freeware version for Windows 9x/ Me/ NT/ 2000/ XP/ 2003.

eScan Anti Virus Toolkit (4.6 MB) is a free utility that scans your computer for virus infections and cleans the registry and other system areas of damage that a virus might have done. The program also looks for running processes in memory, illegal dialers running in memory and sniffers or tools running in memory. Updated once-a-week. Freeware version for Windows.

WinPatrol (790 KB) sniffs out worms, adware, spyware, cookies, trojan horses and other virus types. Puts you back in control of your computer with no need for constant updates. Freeware for Windows 9x/ Me/ NT/ 2000/ XP.

GoldTach (1.1 MB) is a mini-sized personal firewall that protects your computer against hacker intrusions. It has basic firewall, process communication control, E-mail protection and log management. Fr'ee software for Windows 2000/ XP.

Acerose Password Vault (1.0 MB) provides an easy way to organize and keep all your passwords safe and secure. Password records are viewed as a table where every column can be hidden, shown, sorted, sized, or re-ordered. Automatic multi-version backup of vault files to any local or network drive adds another layer of protection against the loss of passwords. Freeware. For Windows 9x/ NT/ 2000/ Me/ XP.

Password Depot (2.6 MB) is a password generator for creating uncrackable passwords. Passwords can be saved in a single password list from which they can inserted into a password box with a mouse click or by dragging & dropping. The free version has a limit of 20 passwords. For Windows 9x/ Me/ NT4/ 2000/ XP.

Asterisk Key (274 KB) is a utility that reveals passwords hidden under asterisks. Works both with password dialog boxes and web page login forms. Just press a button while the dialog box or web page is open and Asterisk Key detects and reveals all masked passwords. For Windows 98/ ME/ 2000/ XP.

VCatch (889 KB) is a new and Free virus protection program that checks all the files sent or downloaded to your computer via Email, Web-Mail, Instant Messaging and File Sharing Apps. In the event that vCatch detects a virus, the software deletes the file and notifies you. VCatch also automatically updates its virus definitions list in your computer once a day. For Win 95/98/2000 & NT.

AVG Anti-Virus (5.2 MB) is an excellent free virus scanner, providing many features that you would only expect to get in a commercial application. It offers an easy-to-use interface, an automatic update feature, free virus database updates, an email scanner, resident protection, automatic healing of infected files and more. Free upon questionnaire completion.

AntiVir Personal Edition (3.9 MB) is effective protection against computer viruses for the individual and private use on a single PC-workstation. Detects and removes more than 50,000 viruses, has a resident Virus Guard that monitors file movements automatically, scans for macro viruses & repairs file damage, auto-update & more. Freeware. For Win 95/98/Me/NT/ 2000/XP.

SoftPerfect Personal Firewall (960 KB) is a network firewall designed to protect your PC against attacks from the Internet or via a local area network. Offers customizable security using user-defined rules for packet filtering. Other features include password protection, logging and more. Freeware for Windows 95/ 98/ ME/ XP/ NT4.x/ 2000/ 2003.

Agnitum Outpost Free (2.78 MB) is a personal firewall to protect your computer from threats by email viruses, backdoors, spyware, crackers, adware, cookies, ads, and more. Supports all the latest security techniques and features such as Full Stealth Mode, Anti-Leak, and MD5 Authentication. Freeware. For Windows 95/ 98/ ME/ NT/ 2000/ XP.