(The advantage of McAfee is its super monitoring and better virus detection ability (according to a recent foreign/foreign evaluation, second only to Kaspersky, F-Prot and AVK). Also, it does not require registration and cracking. In addition, McAfee and Symantec are the only two companies that have access to Microsoft source code. This document includes the following attachments:
Intrusion/Intrusion Prevention System McAfeeNetworkSecurityManager.pdf
Including multiple files, please download and test by yourself!)