The Secunia PSI is a free security tool designed with the sole purpose of helping you secure your computer against vulnerabilities in programs.
Download: http://secunia.com/PSISetup.exe [4]
Links:
[1] http://pulse.veltsos.com/category/it/security
[2] http://pulse.veltsos.com/category/it/software
[3] http://linux.philosweb.com/drupal/files/image_2_107.png
[4] http://secunia.com/PSISetup.exe
[5] http://linux.philosweb.com/drupal/files/image_4_37.png