Hi,
yes, with the last release all files come as .zip properly.
For installation:
To set the bootflag it is sufficient to use a normally formatted CF-card, copied .fir-file in the root-directory and starting the update-mechanism of the camera.
For using the autoexec-file and the other files for working with the camera the bootsector has to be written with EOSCard or another program as described in the installation-guide.
Copy at first the files from the .zip of the release to the card, root,
then run EOSCard with the marked signs as indicated.
The actual version of EOSCard works with win8.1 as I tested yesterday on a x64-system.
And than enjoy the anhanced 400D ...
- modify my 350D also...
Joerg