WehnTrust is a Host-based Intrusion Prevention System (HIPS) that provides secure buffer overflow exploitation countermeasures. While other Windows based intrusion prevention systems are only capable of working with a pre-defined group of applications, WehnTrust's technology allows it to work with virtually all software products. Perhaps best of all, WehnTrust is currently free for home use.WehnTrust implements Address Space Layout Randomization (ASLR) for Windows. While ASLR is a common security measure for UNIX-based operating systems thanks to the PaX Team, it has not been widely implemented for, or deployed on, Windows. When implemented properly, ASLR mitigates nearly all exploitation techniques. The commercial version of WehnTrust also provides other security mechanisms that help to augment ASLR.