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. A very useful tool to detect Trojan infection.