MSU Subtitle and Logo Remover

I would like to know anyone who has got the MSU logo remover working with Avisynth. I guess the big question is just how to write the avisynth routing for a Vdub plugin is you don't have access to the filter's source code? I've looked at the existing import routines but I cannot find any documentation on how to write your own import script.

Use this Code:

Thanks for your response, it was very helpful. (I'll try it tonight.) I've had to take serveral cracks at the MSU filter to get good results. For removing a logo, I think it is way too slow but I want to use it to remove those pop-ups that are now all over our TV. (You know, the pop-ups that tell us things like "New Simpsons tonight at 8:00".) One station here has popups so big that they cover 30% of the frame. This filter is VERY slow but since it will only be used for about 3 minutes of the whole file, it shouldn't effect the encode time too much. To deal with the smaller popups, I've written a little routine that zooms and out wile the popup is on screen. The final result looks pretty good but I like it because it is very easy to use. (Just feed it the beginning and and frames of the popup.)