I use the preview pane quite often so I can watch videos without having to launch an application to play them. I do this with mostly with tutorials. Most of the tutorials were in quicktime format; quicktime takes a significant amount of time to open on my system, so I used format factory to change them into MP4's (they will play in the preview pane). Just out of boredom, I installed a new convert, called CoverterLite. Now every single video that I converted causes WMP to crash even inside the preview pane. If I were to change my default media player would that affect to preview pane as well? Or does it require so registry editing?