I have MimeTypes Link Icons plugin in use in an intranet type WordPress site. It shows nicely the icons next to document links.
However, in version 1.0.3 the links get broken. For instance, a link to
http://example.com/intranet/wp-content/uploads/2011/01/file1.pdf
works fine in 1.0.0. In 1.0.3 the link is converted to:
http://example.com/intranet/%01
It shows correctly in the editor but is broken in the final post.
I downgraded the plugin to 1.0.0. I would prefer the new version, however, since it has a .ppt icon which is not available in the old one.