Gallery2 video with explorer

Dear dreamhoster (excuse my bad english),

I had installed ffmpeg in my dir to be able to load and watch video with gallery2.
Everything goes fine with konqueror, but I can’t be able to watch video
with MS Explorer.

Browsing gallery’s wiki, I read that I have to put this code on my

"RemoveOutputFilter avi mpeg mpg "

but if I do this, web site is unaccessible.

Can you tell what I have to do to be able to watch video on IE?

Thank you very much