Use Trojan Shield to protect yourself from hackers and Trojan viruses. If a hacker tries to break into your computer, Trojan Shield automatically warns you so you can take action against them.
You don't need to be a computer expert to use Trojan Shield, Just install it and let it go to work.

RegistryProt is a 100% free, standalone, compact, low-level realtime registry monitor and protector, that adds another dimension to Windows security and intrusion detection. By monitoring important locations and keys in the Windows system registry, RegistryProt will alert whenever a key is added or changed, and then give the option of accepting the key change, reverting back to the original key setting, or deleting the key.

Anti-BO is a listening device which sits in your system tray awaiting hack attempts from Trojan programs like Back Orifice and Netbus. The program works my making your system look vulnerable to those who scan the internet for infected machines, and logs attempts of entry with your attackers IP address & date/time info, and the type of program they used.