AK-Protection protects your computer from any dangerous programs that attempt to connect to your system thanks to its updated database that has registers of many kinds of trojans, malwares, adwares and spywares that can be found in the Internet.
You can easily control what other users or computers do inside your network . Blocks and detects current and future intruders.
It's compatible with Windows Operating Systems from Windows NT to Windows XP
This is a 15 days trial. The price is a little high but you can always have the option to buy it or not.
The new version includes bugs fixing and updates.