QUOTE (lameboyadvance @ Jul 30 2006, 08:37 AM)

OK, tried that one and it worked. Must have been my version.
When you look at
http://www.free-codecs.com/download/FFDShow.htm, indeed the 2006-07-16 version does give the error message and does not want to install on Windows 98. (The SSE or SSE2 versions work. Also note that the non-SSE version is bigger in size, like 4 MB.)
You can also go to
this site for a version that works on Windows 98, and then of course the site given by LLXX.