ThreatSentry is a Host Intrusion Prevention software application (HIPS), designed to protect Windows Web servers running Microsoft IIS. Comprised of two powerful components: An Application Firewall, pre-configured with a knowledgebase of known exploitive techniques and attack characteristics. Administrator can establish explicit guidelines for permissible and/or denied activity. The application firewall is coupled with an advanced neural-based Behavioral Engine that organizes server requests into a multi-dimensional baseline of typical system activity. Each server connection is scrutinized by the rule-set configured in the application firewall and the behavioral baseline to identify and take action against any activity falling outside trusted parameters. ThreatSentry s intrusion prevention capabilities progressively improve as the baseline evolves automatically or based on input from the system administrator. Version 3 may include unspecified updates, enhancements, or bug fixes.