Salamat bro try ko to.
I'm using camtasia before for editing videos in my youtube campaign. You can download a crack version on torrent sites.
Nagtry na ako ng camtasia na lower version ayaw magintall dahi l ayaw maginstall ng microsoft framework 4 .net may problema ata talaga pc ko.
I suggest that you upgrade your computer.
I also had that problem just months ago, and I almost couldn't install anything because most required 64 bit spec