Secunia, the software security specialist, has just launched a free downloadable tool that automatically monitors the vulnerability of software installed on your PC. The Personal Software Inspector is based on Secunia's very useful web-based inspection service, which informs you of updates and patches via email. The new tool sits in your system tray and alerts you to critical security updates for installed programs.

It's a simple but handy tool, especially when programs don't themselves alert you to new patches and updates. Direct download links to updates are provided if available. It's currently in beta and is a free download for personal use only.