This is called DLL Hijacking and it's a class of flaws that gained prominence on Windows earlier this year. Although I would say that Mandiant discussed the issue first, it was only after HDM practically described the WebDAV and other remote exploit vectors that people started taking it seriously.

https://community.rapid7.com/community/infosec/blog/2010/08/...

http://blogs.msdn.com/b/david_leblanc/archive/2008/02/20/dll...

http://www.n00bz.net/blog/2010/9/15/dll-hijacking-with-metas...