Innoextract doesn't extract multiple install files

I tried to extract the GOG Installer for Divinity: Original Sin but innoextract just extracts the.exe file (I think), not the 3 .bin files that are part of the install. The files on GOG are:
setup_divinity_original_sin_2.5.0.11.exe
setup_divinity_original_sin_2.5.0.11-1.bin
setup_divinity_original_sin_2.5.0.11-2.bin
setup_divinity_original_sin_2.5.0.11-3.bin

It extracts a /tmp (files for the install shield) and /app (contains GameuxInstallHelper.dll Support.ico ) folder, but not all the game files.

[dscharrer]

In these multi-file setups the .exe typically doesn't store any files but only the headers that describe where and how the files are stored - so some of the .bin files must be read.

/tmp (files for the install shield)

Install shield files for what? If they are for the game and not some extra utility (like Foxit Reader / DirectX / MSVC runtime / .NET runtime / ...) then I haven't seen that layout from GOG before. What size do these files have (ie: are they large enough to contain the game files)?

I don't have access to a version 2.5.0 installer - besides The Witcher 2 (which seems to use a different versioning scheme), the newest GOG installer I have is versioned 2.1.0.6 - maybe they did change something.

Can you please post the complete console output of:

innoextract -v

and

innoextract -l setup_divinity_original_sin_2.5.0.11.exe

and

innoextract -t setup_divinity_original_sin_2.5.0.11.exe

Install shield files for the game installer itself. Eula, various .pngs that are shown in the background of gog installs.

innoextract -v
innoextract 1.4
Extracts installers created by Inno Setup 1.2.10 to 5.5.3

and

innoextract -l setup_divinity_original_sin_2.5.0.11.exe 
Listing "Divinity - Original Sin" - setup data version 5.5.0 (unicode)
 - "tmp/MSVC2008EULA.txt" (5.08 KiB)
 - "tmp/dotnet35EULA.txt" (12.3 KiB)
 - "tmp/DirectXEULA.txt" (9.92 KiB)
 - "tmp/botva2.dll" (35 KiB)
 - "tmp/crcdll.dll" (69.5 KiB)
 - "tmp/get_hw_caps.dll" (76.7 KiB)
 - "app/GameuxInstallHelper.dll" (94 KiB)
 - "tmp/InnoCallback.dll" (63.5 KiB)
 - "tmp/md5log.ini" (7 B)
 - "tmp/unrar.dll" (232 KiB)
 - "tmp/background.png" (4.84 KiB)
 - "tmp/bg-bot@2x.jpg" (1.22 KiB)
 - "tmp/BigFail.png" (1.63 KiB)
 - "tmp/BigFail200.png" (3.41 KiB)
 - "tmp/BigOK.png" (3.33 KiB)
 - "tmp/BigOK200.png" (12.8 KiB)
 - "tmp/BigWarn.png" (1.58 KiB)
 - "tmp/BigWarn200.png" (3.27 KiB)
 - "tmp/bottombar.png" (340 B)
 - "tmp/bottombar200.png" (938 B)
 - "tmp/btn_browse.png" (4.82 KiB)
 - "tmp/btn_browse200.png" (11.5 KiB)
 - "tmp/btn_close.png" (3.36 KiB)
 - "tmp/btn_close200.png" (9.33 KiB)
 - "tmp/btn_continue.png" (4.18 KiB)
 - "tmp/btn_continue200.png" (11.2 KiB)
 - "tmp/btn_exit.png" (3.76 KiB)
 - "tmp/btn_exit200.png" (8.37 KiB)
 - "tmp/btn_launch.png" (9.96 KiB)
 - "tmp/btn_launch200.png" (21.5 KiB)
 - "tmp/btn_md5.png" (8.73 KiB)
 - "tmp/btn_md5200.png" (12.5 KiB)
 - "tmp/btn_options.png" (5.01 KiB)
 - "tmp/btn_options200.png" (12.5 KiB)
 - "tmp/btn_save_as.png" (5.64 KiB)
 - "tmp/btn_save_as200.png" (15.6 KiB)
 - "tmp/btn_skip.png" (3.23 KiB)
 - "tmp/btn_skip200.png" (8.52 KiB)
 - "tmp/btn_start.png" (4.21 KiB)
 - "tmp/btn_start200.png" (9.59 KiB)
 - "tmp/btn_tryagain.png" (10.5 KiB)
 - "tmp/btn_tryagain200.png" (24.2 KiB)
 - "tmp/error.png" (726 B)
 - "tmp/error200.png" (1.78 KiB)
 - "tmp/error_icon.png" (1.44 KiB)
 - "tmp/error_icon200.png" (2.14 KiB)
 - "tmp/EULA.png" (2.32 KiB)
 - "tmp/EULA200.png" (10.5 KiB)
 - "tmp/EULAAccepted.png" (2.63 KiB)
 - "tmp/EULAAccepted200.png" (11.4 KiB)
 - "tmp/EULAShow.png" (1.47 KiB)
 - "tmp/EULAShow200.png" (2.15 KiB)
 - "tmp/EULA_bkg.png" (3.52 KiB)
 - "tmp/gog.ico" (67.6 KiB)
 - "tmp/GOG.png" (3.45 KiB)
 - "tmp/GOG200.png" (5.29 KiB)
 - "tmp/ok.png" (1.18 KiB)
 - "tmp/ok200.png" (2.18 KiB)
 - "tmp/OpenSans-Regular.ttf" (212 KiB)
 - "tmp/OpenSans-Semibold.ttf" (216 KiB)
 - "tmp/progress_center.png" (1.12 KiB)
 - "tmp/progress_center200.png" (1.26 KiB)
 - "tmp/progress_left.png" (1.15 KiB)
 - "tmp/progress_left200.png" (792 B)
 - "tmp/progress_right.png" (1.15 KiB)
 - "tmp/progress_right200.png" (828 B)
 - "tmp/scroll-handle-bot.png" (1 KiB)
 - "tmp/scroll-handle-top.png" (1.01 KiB)
 - "tmp/trackbar_back.png" (1.7 KiB)
 - "tmp/trackbar_back200.png" (4.4 KiB)
 - "tmp/trackbar_btn.png" (2 KiB)
 - "tmp/trackbar_btn200.png" (5.65 KiB)
 - "tmp/track_center.png" (1.09 KiB)
 - "tmp/track_center200.png" (1.21 KiB)
 - "tmp/track_left.png" (1.11 KiB)
 - "tmp/track_left200.png" (558 B)
 - "tmp/track_right.png" (1.12 KiB)
 - "tmp/track_right200.png" (557 B)
 - "app/Support.ico" (61.4 KiB)
 - "tmp/05.Might-and-Magic-6-Pack-Limited-Edition.png" (1.34 MiB)
 - "tmp/09.Arcanum_-Of-Steamworks-and-Magick-Obscura.png" (1.38 MiB)
 - "tmp/14.Geneforge-1-5.png" (1.22 MiB)
 - "tmp/01.Baldur's-Gate-2-Complete.png" (1.46 MiB)
 - "tmp/02.Planescape-Torment.png" (1.05 MiB)
 - "tmp/01.System-Shock-2.png" (1.05 MiB)
 - "tmp/04.Witcher-2-Assassins-of-Kings.png" (1.31 MiB)
 - "tmp/06.Legend-of-Grimrock.png" (1.03 MiB)
 - "tmp/07.Ultima-7-The-Complete-Edition.png" (1.07 MiB)
 - "tmp/08.Neverwinter-Nights-Diamond-Edition.png" (1.17 MiB)
 - "tmp/10.Divine-Divinity.png" (877 KiB)
 - "tmp/11.Icewind-Dale-Complete.png" (1.29 MiB)
 - "tmp/13.The-Inquisitor.png" (1.19 MiB)
 - "tmp/15.Nox.png" (952 KiB)
 - "tmp/16.Darklands.png" (1.09 MiB)
 - "tmp/03.Comanche-vs.-Hokum.png" (1.08 MiB)
 - "tmp/04.Beyond-Good-&-Evil.png" (1.06 MiB)
 - "tmp/05.Another-World-15th-Anniversary-Edition.png" (1.15 MiB)
 - "tmp/06.Driver-Parallel-Lines.png" (1.16 MiB)
 - "tmp/07.ArmA-II.png" (1.25 MiB)
 - "tmp/08.Alone-in-The-Dark-1+2+3.png" (1.42 MiB)
 - "tmp/09.Alan-Wake.png" (1.02 MiB)
 - "tmp/10.Bloodrayne.png" (1.07 MiB)
 - "tmp/11.Age-of-Wonders.png" (1.01 MiB)
 - "tmp/02.Far-Cry.png" (1.56 MiB)
 - "tmp/12.Oddworld-Abe's-Exoddus.png" (1.29 MiB)
 - "tmp/13.Cannon-Fodder.png" (1.06 MiB)
 - "tmp/14.Fahrenheit-(Indigo-Prophecy).png" (1.19 MiB)
 - "tmp/15.Crusader-No-Regret.png" (1.2 MiB)
 - "tmp/1207664923.ini" (3.85 KiB)
 - "tmp/gog_installer_background.jpg" (79.3 KiB)
 - "tmp/EULA.txt" (0 B)
 - "tmp/GOG_EULA.txt" (7.33 KiB)
 - "tmp/changelog.ini" (6.75 KiB)
 - "tmp/QTEULA.txt" (27.7 KiB)
Done.

and:

innoextract -t setup_divinity_original_sin_2.5.0.11.exe 
Testing "Divinity - Original Sin" - setup data version 5.5.0 (unicode)
 - "tmp/MSVC2008EULA.txt" (5.08 KiB)
 - "tmp/dotnet35EULA.txt" (12.3 KiB)                                                 
 - "tmp/DirectXEULA.txt" (9.92 KiB)                                                  
 - "tmp/botva2.dll" (35 KiB)                                                         
 - "tmp/crcdll.dll" (69.5 KiB)                                                       
 - "tmp/get_hw_caps.dll" (76.7 KiB)                                                  
 - "app/GameuxInstallHelper.dll" (94 KiB)                                            
 - "tmp/InnoCallback.dll" (63.5 KiB)                                                 
 - "tmp/md5log.ini" (7 B)                                                            
 - "tmp/unrar.dll" (232 KiB)                                                         
 - "tmp/background.png" (4.84 KiB)                                                   
 - "tmp/bg-bot@2x.jpg" (1.22 KiB)                                                    
 - "tmp/BigFail.png" (1.63 KiB)                                                      
 - "tmp/BigFail200.png" (3.41 KiB)                                                   
 - "tmp/BigOK.png" (3.33 KiB)                                                        
 - "tmp/BigOK200.png" (12.8 KiB)                                                     
 - "tmp/BigWarn.png" (1.58 KiB)                                                      
 - "tmp/BigWarn200.png" (3.27 KiB)                                                   
 - "tmp/bottombar.png" (340 B)                                                       
 - "tmp/bottombar200.png" (938 B)                                                    
 - "tmp/btn_browse.png" (4.82 KiB)                                                   
 - "tmp/btn_browse200.png" (11.5 KiB)                                                
 - "tmp/btn_close.png" (3.36 KiB)                                                    
 - "tmp/btn_close200.png" (9.33 KiB)                                                 
 - "tmp/btn_continue.png" (4.18 KiB)                                                 
 - "tmp/btn_continue200.png" (11.2 KiB)                                              
 - "tmp/btn_exit.png" (3.76 KiB)                                                     
 - "tmp/btn_exit200.png" (8.37 KiB)                                                  
 - "tmp/btn_launch.png" (9.96 KiB)                                                   
 - "tmp/btn_launch200.png" (21.5 KiB)                                                
 - "tmp/btn_md5.png" (8.73 KiB)                                                      
 - "tmp/btn_md5200.png" (12.5 KiB)                                                   
 - "tmp/btn_options.png" (5.01 KiB)                                                  
 - "tmp/btn_options200.png" (12.5 KiB)                                               
 - "tmp/btn_save_as.png" (5.64 KiB)                                                  
 - "tmp/btn_save_as200.png" (15.6 KiB)                                               
 - "tmp/btn_skip.png" (3.23 KiB)                                                     
 - "tmp/btn_skip200.png" (8.52 KiB)                                                  
 - "tmp/btn_start.png" (4.21 KiB)                                                    
 - "tmp/btn_start200.png" (9.59 KiB)                                                 
 - "tmp/btn_tryagain.png" (10.5 KiB)                                                 
 - "tmp/btn_tryagain200.png" (24.2 KiB)                                              
 - "tmp/error.png" (726 B)                                                           
 - "tmp/error200.png" (1.78 KiB)                                                     
 - "tmp/error_icon.png" (1.44 KiB)                                                   
 - "tmp/error_icon200.png" (2.14 KiB)                                                
 - "tmp/EULA.png" (2.32 KiB)                                                         
 - "tmp/EULA200.png" (10.5 KiB)                                                      
 - "tmp/EULAAccepted.png" (2.63 KiB)                                                 
 - "tmp/EULAAccepted200.png" (11.4 KiB)                                              
 - "tmp/EULAShow.png" (1.47 KiB)                                                     
 - "tmp/EULAShow200.png" (2.15 KiB)                                                  
 - "tmp/EULA_bkg.png" (3.52 KiB)                                                     
 - "tmp/gog.ico" (67.6 KiB)                                                          
 - "tmp/GOG.png" (3.45 KiB)                                                          
 - "tmp/GOG200.png" (5.29 KiB)                                                       
 - "tmp/ok.png" (1.18 KiB)                                                           
 - "tmp/ok200.png" (2.18 KiB)                                                        
 - "tmp/OpenSans-Regular.ttf" (212 KiB)                                              
 - "tmp/OpenSans-Semibold.ttf" (216 KiB)                                             
 - "tmp/progress_center.png" (1.12 KiB)                                              
 - "tmp/progress_center200.png" (1.26 KiB)                                           
 - "tmp/progress_left.png" (1.15 KiB)                                                
 - "tmp/progress_left200.png" (792 B)                                                
 - "tmp/progress_right.png" (1.15 KiB)                                               
 - "tmp/progress_right200.png" (828 B)                                               
 - "tmp/scroll-handle-bot.png" (1 KiB)                                               
 - "tmp/scroll-handle-top.png" (1.01 KiB)                                            
 - "tmp/trackbar_back.png" (1.7 KiB)                                                 
 - "tmp/trackbar_back200.png" (4.4 KiB)                                              
 - "tmp/trackbar_btn.png" (2 KiB)                                                    
 - "tmp/trackbar_btn200.png" (5.65 KiB)                                              
 - "tmp/track_center.png" (1.09 KiB)                                                 
 - "tmp/track_center200.png" (1.21 KiB)                                              
 - "tmp/track_left.png" (1.11 KiB)                                                   
 - "tmp/track_left200.png" (558 B)                                                   
 - "tmp/track_right.png" (1.12 KiB)                                                  
 - "tmp/track_right200.png" (557 B)                                                  
 - "app/Support.ico" (61.4 KiB)                                                      
 - "tmp/05.Might-and-Magic-6-Pack-Limited-Edition.png" (1.34 MiB)                    
 - "tmp/09.Arcanum_-Of-Steamworks-and-Magick-Obscura.png" (1.38 MiB)                 
 - "tmp/14.Geneforge-1-5.png" (1.22 MiB)                                             
 - "tmp/01.Baldur's-Gate-2-Complete.png" (1.46 MiB)                                  
 - "tmp/02.Planescape-Torment.png" (1.05 MiB)                                        
 - "tmp/01.System-Shock-2.png" (1.05 MiB)                                            
 - "tmp/04.Witcher-2-Assassins-of-Kings.png" (1.31 MiB)                              
 - "tmp/06.Legend-of-Grimrock.png" (1.03 MiB)                                        
 - "tmp/07.Ultima-7-The-Complete-Edition.png" (1.07 MiB)                             
 - "tmp/08.Neverwinter-Nights-Diamond-Edition.png" (1.17 MiB)                        
 - "tmp/10.Divine-Divinity.png" (877 KiB)                                            
 - "tmp/11.Icewind-Dale-Complete.png" (1.29 MiB)                                     
 - "tmp/13.The-Inquisitor.png" (1.19 MiB)                                            
 - "tmp/15.Nox.png" (952 KiB)                                                        
 - "tmp/16.Darklands.png" (1.09 MiB)                                                 
 - "tmp/03.Comanche-vs.-Hokum.png" (1.08 MiB)                                        
 - "tmp/04.Beyond-Good-&-Evil.png" (1.06 MiB)                                        
 - "tmp/05.Another-World-15th-Anniversary-Edition.png" (1.15 MiB)                    
 - "tmp/06.Driver-Parallel-Lines.png" (1.16 MiB)                                     
 - "tmp/07.ArmA-II.png" (1.25 MiB)                                                   
 - "tmp/08.Alone-in-The-Dark-1+2+3.png" (1.42 MiB)                                   
 - "tmp/09.Alan-Wake.png" (1.02 MiB)                                                 
 - "tmp/10.Bloodrayne.png" (1.07 MiB)                                                
 - "tmp/11.Age-of-Wonders.png" (1.01 MiB)                                            
 - "tmp/02.Far-Cry.png" (1.56 MiB)                                                   
 - "tmp/12.Oddworld-Abe's-Exoddus.png" (1.29 MiB)                                    
 - "tmp/13.Cannon-Fodder.png" (1.06 MiB)                                             
 - "tmp/14.Fahrenheit-(Indigo-Prophecy).png" (1.19 MiB)                              
 - "tmp/15.Crusader-No-Regret.png" (1.2 MiB)                                         
 - "tmp/1207664923.ini" (3.85 KiB)                                                   
 - "tmp/gog_installer_background.jpg" (79.3 KiB)                                     
 - "tmp/EULA.txt" (0 B)                                                              
 - "tmp/GOG_EULA.txt" (7.33 KiB)                                                     
 - "tmp/changelog.ini" (6.75 KiB)                                                    
 - "tmp/QTEULA.txt" (27.7 KiB)                                                       
Done.

[dscharrer]

Hm, that is odd…

Normally the output for multi-part installers would start with something like:

$ innoextract -t setup_nwn2_complete_2.1.0.6.exe 
Testing "Neverwinter Nights 2 Complete" - setup data version 5.5.0 (unicode)
opening "setup_nwn2_complete_2.1.0.6-1.bin"
 - "app/binkw32.dll" (339 KiB)

You can see that the first .bin file is opened before any files are extracted because the .exe contains only headers. Having both embedded and external data slices is not supported by Inno Setup so I suspect those .bin files are something else.

The tmp/unrar.dll file is also suspicious - have you tried running the unrar and file utilities on the .bin files?

Unrar demands a password for the bin files, which I have no idea where I can find that.
File tells me this:

setup_divinity_original_sin_2.5.0.11-1.bin: RAR archive data, v2a,

[dscharrer]

I don't think there's much I can do here then - extracting RAR files is certainly out of the scope of the project.

Unrar demands a password for the bin files, which I have no idea where I can find that.

It is probably embedded in th compiled Inno Setup script code, possibly obfuscated - I have seen something similar with other installers that used Inno Setup's encryption feature, but have no idea why GOG would do that.

Getting to that password could be very hard - doing it reliably would mean implementing Inno Setup scripting and the WinAPI calls it supports, including loading and running external helper DLLs. At that point you might as well run the installer directly (there should be a non-interactive mode as well), either on Windows or under Wine.

[shmerl]

How can it use RAR? Innosetup is an open source tool, and there is no open RAR compressor. I think it's some confusion. This requires some further investigation.

[dscharrer]

I don't think Inno Setup is directly using rar here. The innoextract -l output posted shows that there is a unrar.dll, which most likely gets called by GOG's setup scripts. This isn't anything vanilla Inno Setup will do so GOG (or Larian?) must have added on their own. I have no idea why - maybe rar provided a better compression ratio or extract speed than lzma2 in this case.

Have you seen any other GOG installers like this? I'm only aware of Divinity: Original Sin so far.

[shmerl]

@dscharrer : You are right. I just checked it for Deponia (the first game, 2.2.0.8). Other games that were reported to be affected by this:

Heroes of Might and Magic 5, French version 2.1.0.22
Heroes of Might and Magic 5: Tribes of the East, French version 2.1.0.24
Overlord: Rising Hell, French version 2.1.0.13
The Bard’s Tale, version 2.1.0.9
Deponia, version 2.2.0.8
Chaos on Deponia, version 2.2.0.6
Goodbye Deponia, version 2.1.0.10

For first Deponia, the first file setup_deponia_2.2.0.8.exe is an innosetup archive, and the second file (setup_deponia_2.2.0.8.bin) is an encrypted RAR archive.

Is there any way to extract the scripts from the package made by innosetup which are executed by the installer? May be then it will be possible to figure out how that password is generated.

[dscharrer]

It appears this is more common after all :(
A few that I have:

File	Format	Password
setup_assassins_creed_2.1.0.23-1.bin	RAR	✓
setup_baldurs_gate2_french_2.1.0.17.bin	RAR	✓
setup_nwn_diamond_french_2.1.0.19.bin	RAR	✓
setup_the_bards_tale_2.1.0.9.bin	RAR	✓
setup_the_witcher_2_ee_3.0.1.17.bin	FreeArc	✗
setup_the_witcher2_ee_3.4.0.25.bin	Inno Setup (patch)	✗
setup_wasteland2_2.4.0.13-1.bin	RAR	✓

However not all installers with version 2.1+ and multiple files are affected. At least this one is fine:

• setup_nwn2_complete_2.1.0.6

Smaller installers with only the .exe file are also still standard Inno Setup installers.

Is there any way to extract the scripts from the package made by innosetup which are executed by the installer?

Not currently, but that is easy to add - it's part of the headers that innoextract already needs to decompress and parse.

I'll look more into this, thanks for the update.

WTF is GOG encrypting installers for DRM-free games anyway?