Currently at work we use Nessus for all vulnerability scanning, although, now we are considering to start using a more commercial product. We have been going back and forth comparing Retina vs. Qualys for price vs. features vs. quality.

Please all suggestions are welcomed. Thanks for everyone's input

Also, has anyone run into the issue of needing remote registry service turned on in order to scan for windows vulnerabilities. Personally I would rather not turn it on for added security, but from what I've read it is need to assess windows patches. Please if anyone can shed some light on this issue. Thanks