The K-Lite Codec Tweak Tool can detect and remove broken codecs and DirectShow filters. It can also generate detailed lists of all installed codecs and filters on your computers. It allows you to easily enable and disable many commonly used codecs and DirectShow filters.
IpfilterX blocks Anti-P2P companies and the organizations that support them, Corporations, Military Ranges, Government Agencies, Law Firms, P2P spammers and many more. There's no need to block more than 1 billion of IPs to be protected, overloading further to a certain value will result in banning innocent IP ranges which means legitimate P2P sources, this paranoid setting will hog your machine. You won't run into risks using IpfilterX and won't run into more risks than using an overbloated ipfilter.