jpexs-decompiler VS ActionScript4

If you're lucky, the developers will have used a standard format to store their assets and you can just use an existing asset extractor to do the dirty work for you: Unreal, Unity, and Flash (.swf) are some of the most popular ones.

I recently found an awesome flash decompiler[0] and used it to get around site-locking on some swfs I downloaded years ago.

Some swfs require files from the sites they are hosted on but I downloaded them and modified the swfs to find these files on a local server instead.

So cool being able to modify the source code whereas back in the day I had to rely on hex editing to invert conditionals.

[0] https://github.com/jindrapetrik/jpexs-decompiler

jindrapetrik/jpexs-decompiler: JPEXS Free Flash Decompiler (github.com)

JPEXS ffDec is amazing for decompiling them: https://github.com/jindrapetrik/jpexs-decompiler/releases

You can use "inspect element" on the page in Chrome to find the swf. Once you've got it, you can use JPEXS to dump the sound files.

For future reference, you can also extract contents of SWF files using the free program ffDec.

but if anyone finds this and is curious, JPEXS decompiler is by far the best option. https://github.com/jindrapetrik/jpexs-decompiler

I wanted to change the art that is displayed on the loading screen and wanted to ask if I'm doing it the right way. So far the instructions I've found have directed me to use something called UNREALPAK to unpack the Game.pak file, then look for the loadingScreen.swf file and decompile it with this program. After that I should be able to replace the image and, I assume, recompile and repack the loadingScreen.swf and Game.pak files respectively. Does this sound right? If so, where do I find the "UNREALPAK" tool/program? Is there a better tool/program to use for decompiling the loadingScreen.swf file? And if this isn't the correct process, would anyone be able to help me determine the best way to do this? Any help would be appreciated.

that mindset. Though it could also be that web wasn't a very good target in the era when they still cared about Flash.)

I never heard of AS4 before! That's so cool. I found a specification and whitepaper here https://github.com/adobe-research/ActionScript4

It was supposed to be a compiled language, in order to solve performance and battery issues on mobile devices.

Being able to say "we fixed one of your biggest complaints / reasons for trying to kill us" sounds like it would have been pretty good marketing, and Adobe with their budget seems like they could have afforded that easily. (I don't know how much it costs to develop a new programming language, but I know it has often been done by a single person in their spare time!)