Look Im fine using DosBox both for Win 10 and Mobile. I do not need to use any gog installers. execution files such as Scumv.. When paying for a product im expecting to get the game with the files they come originally. I was never fan of this - delete or pack all EXE,COM,DAT etc files and put them in some Scumv or whatever is called.

So is there a way tu 'unpack' all the missing files so you can setup your games from Setup.exe where it has them and run the dat/bat/exe files?

Nope.
Not exactly sure why you're complaining. ScummVM is a perfectly fine way to run adventure games.

Men hey, måske er jeg alligevel ikke purist nok til GOG.
Jeg elsker nogle gode source ports og ville ønske, at GOG gad at støtte dem.

I guess it depends on the game. For example I have The Colonel's Bequest installed right now, and the original executables are still there in the install directory, even though the game launches through ScummVM.

Whic games are you talking about exaclty?
I know the .exes are missing in Simon 1+2, but that has been the case for 7 years now at least.
In all other games I tested, I found the exe files (except for the games that are not DOS versions, like Zak McCracken, which is a FM towns game) .

For some games the exes were moved into a subdirectory, but usually they are still part of the installation.

Another thing: Back in the days a patch usually meant that the .exe file gets replaced. So if you download patches for these games, more often than not you will find a working .exe there.

Unfortunately, that's not what they promised, so I'm not sure why you'd have that expectation of a game purchased here. There are many XP era games that WILL. NOT. RUN. ON. XP.

They try to deliver classic games that will work on modern systems, not original files. I understand this can be disappointing, and maybe even confusing since the original files are there with some games. But it is not a goal, a requirement or a guarantee that the store ever made.

All true; but the OP isn't even asking about running games on old Operating Systems.
While I agree that no original files should've been removed - this topic just sounds like an OCD rant.

If that is true, then it is even more important to help this person find a solution.

There is no solution, except for finding/downloading those files on abandonware or "other" sites. I'd argue that in this case, there isn't even a "problem".

He's complaining that GOG altered the game's original files, and removed some of them, before making that modified/butchered version accessible to him. That's a completely legitimate point.

Whether or not "ScummVM is perfectly fine" is a moot point.

Either way, GOG should not be removing any game's original files and then selling the modified/butchered versions to consumers, and especially not if GOG fails to make clear that what they are selling is not the original real thing.

@OP: there is nothing you can do about this other than to complain & to ask GOG to put the original files back into their versions of the game.

Unfortunately, doing those things probably isn't going to result in GOG actually doing that.

Do you want to get a creaky old game like Myst Masterpiece running?
Or Hades help you, Riven?

When/where did GOG ever promise that they sell games in the identical state as when they were originally released?
For newer games that would even mean that GOG would be a steam key reseller (because for many of them, the Steamed version IS the original release).

(I still don't agree with the removal of those DOS files. But that doesn't mean that "GOG owes me...")

So far he didn't say what games he's talking about.

btw, many old games don't need a setup.exe. Just copy the content to the hard drive and play.

I usually install my GOG Games, then copy the content into my DOSBOX or ScummVMGames directory. After that I uninstall the game.

I have The DIG installed on my PC (running on ScummVM) and it has a sub-directory called _other that includes all the original DOS files. I don't know if they are still required by ScummVM.

One time I created a new directory like 'The Dig - DOSBox' and copied to it all the files from the main game directory and from that '_other' sub-directory, then tried to run it with DOSBox, and it didn't run at all.

Some of the ScummVM games have been further changed or enhanced, I noticed that in 'The Dig' and in 'Indiana Jones and the Fate of Atlantis' the sound quality of the speech is much higher and cleaner than it was in the original DOS versions, and I'm pretty sure that they are using more modern sound files that the original versions can't handle.

In cases where the ScummVM version in no longer compatible with DOSBox I think it would be cool if GOG could include the DOSBox version in the 'Extras' section, and maybe people could run them using RetroArch on Raspberry Pi or something.

Depends. I normally want to use Munt with those DOS games that supported Roland MT-32/LAPC-I/CM-32L but as GOG removed e.g. the sound setup executables from some games, I've had to find some alternative ways to enable the Roland M-32 (or sometimes General MIDI) support in the game.

Two such cases I remember fighting with in the past with GOG games were Ultima Underworld 1-2 and Theme Hospital.

https://www.gog.com/forum/general/music_and_sound_effects/page1

I am unsure how well ScummVM supports Roland MT-32 emulation in those games that support Roland, and how to enable it. I usually opt for DOSBox for my Roland DOS games.

Most of us don't want the games in the 100% exact original release form. In addition to newer games being released as Steam keys, a lot of older DOS-era game had copy protection where you were looking up stuff in manuals, using code wheels, looking a chart using a red plastic lens, or checking the back side of the physical box.

Some games like Freddy Pharkas and Star Trek 25th Anniversary had you regularly dealing with copy protection where you got one chance and getting it wrong would mean that the game would end.