I’ve gone ahead and compiled qt-faststart for Win32 and Win64, they can be found here:

Win32 qt-faststart git-91a4abd8: http://ffmpeg.zeranoe.com/builds/qt-faststart/win32/qt-faststart-git-91a4abd8-win32.7z

Win64 qt-faststart git-91a4abd8: http://ffmpeg.zeranoe.com/builds/qt-faststart/win64/qt-faststart-git-91a4abd8-win64.7z