"Activated" patch for ep4 v8 extra. Unpack to the game folder (where the exe is), overwriting any existing files.
Code:
https://files.fm/f/dzfu3hfmun
https://www.mediafire.com/file/lj79lmerb2mgop0/game.zip/file
Offsets for fb_unextra:
Ep3 v16: "316:30477"
Ep4 v8: "408:13852"
Below are some alternatives.
(*) If you want to just play and don't care about viewing images in an image viewer, put the corresponding z_activation_*.rpy file to the subfolder "game" inside the game folder. z_activation_316.rpy is for ep3 v16, and z_activation_408.rpy is for ep4 v8.
ep4 v8, z_activation_408.rpy specific: file img_65067.jpg is "broken" in that it uses a different offset, and this makes the game crash when trying to show it. So if you're using z_activation_408.rpy, you have to use the decoded file img_65067.jpg from the attached archive img_65067.zip - unpack it to folder /game/images/Slides.
(*) If you want to decode images, use fb_unextra. It requires Java (oracle.com) and a functioning brain on the user side.
Run it without arguments to see usage help.
In short, you use it like this:
java fb_unextra -if INFOLDER -of OUTFOLDER -o OFFSET
INFOLDER
is the game folder.
OUTFOLDER
is the folder to put the decoded images to.
OFFSET
depends on the game version. For ep3 v16 it's "316:30477". For ep4 v8 it's "408:13852".
For Windows users, there are "fb_unextra.drop.*.bat" scripts for convenience - just drag and drop the game folder on it and it should decode the images for you, backing up the original files as "*.(z117extra).jpg".