'Quark', and 'Regshot'

Quark

Quark is a powerful security tool which will help you protect your computer from unauthorized access by denying any user interaction until the correct password has been provided.

http://www.classic-software.ro

Regshot

Regshot is an open-source (GPL) registry compare utility that allows you to quickly take a snapshot of your registry and then compare it with a second one -- which can be performed after doing system changes or installing a new software product, for example.

http://sourceforge.net

Today's fresh software picks were provided courtesy of Bob Helmer at Shell Extension City. Please note that the below software descriptions are provided solely from the developer and are absent from any guarantee or warranty. You are encouraged to review the Shell Extension Software Policy for more details.