64 bit wmadec

[Galaedriel]

When transcoding from wma to mp3 I get this error: Cannot run program "c:\subsonic\transcode\wmadec": CreateProcess error=216, This version of %1 is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need a x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher.

Does anyone know where I can get 64 bit wmadec?