Can't associat e AVI Files when double click

Hey guys, I use Portable VLC on my computer (and portable firefox and lotsa portable version of apps coz it doesnt scattrer settings around). Anyway, I tried associating video files to the launcher and all works fine, except for avi and .mov. when I double click on an avi file I get this error:

http://img301.imageshack.us/img301/3492/untitledto4.jpg

but when I double click on mpeg/wma and other video files it opens it in vlc just fine. How do I fix .avi and .mov association?

Also when I right click on a video file my pc get sluggish for a second and the cpu usage graph spikes up. In addition it adds a "Play on My -> Monitor" Contect Menu on the right click menu. How do I remove that?