There was a download of Vaccine46 1.9.6.1 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most frequent installation filenames for the program include: Vaccine46.exe and Vaccine46VS.exe etc. We recommend checking the downloaded files with any free antivirus. The most popular versions of the software 2.0 and 1.9. Vaccine46 lies within Security Tools, more precisely Antivirus. This software is an intellectual property of 46Soft.com, Inc.
From the developer:
Main features:
LIGHT: 10MB only.
It only takes up 10 megabytes of space on your hard drive and it does'n slow down your computer (windows loading, internet surfing etc.)
EASY: Install it and forget about it!
Easy to install and to use it.
You can install it in 5 clicks, and you don't have to restart your computer!
Soon after the installation it's immediately active and protecting your system.
You may want to check out more software, such as ANtsP2P, MessageLock or Cookie Spook, which might be similar to Vaccine46.