Oops, meant to reply to the list.

Also, LADSPA is pretty much just a header that the client app and the plugin both use, it has Linux in the name but is in no way dependent on Linux. This is reportedly a working build of a selection of 90 or so LADSPA plugins: http://downloads.sourceforge.net/audacity/LADSPA_plugins-win-0.4.15.exe . Also, if you install the header and build any other plugins from source on a windows machine, they should just work (if they will build in a windows environment, of course).