Inno Setup v7 preview 3 issue?

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Hans Meijer

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Apr 13, 2026, 10:03:37 AM (11 days ago) Apr 13
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Hello,

 

I downloaded the mentioned version and installed the 64bit release.

First created an installer in 32bit as is on my .iss file, next run the installer without any problem.

Next added the line in setup section to create 64bit installers.

Created new installer, no problem, next trying to install the application it fails.

See logfile attached, assume it has something to do with:

  • You cannot load 32-bit DLLs in 64-bit installers because Windows does not allow 64-bit processes to load 32-bit DLLs (and vice versa). However, you can always launch both 32-bit and 64-bit EXEs using the Exec function or the [Run] section.

 

But I don’t load it myself, no 'ntdll.dll' in the .iss file.

 

I’m waiting for my purchased license (somewhere in our organization has someone to confirm it), hope it doesn’t have anything to do with it.

 

Met vriendelijke groet/Best regards,

 

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Hans Meijer

Senior Technical Consultant | Akkuro Savings & Investments

(Afwezig op dinsdag en vrijdag)

 

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+31 6 20036886

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+31 182 398752

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Kampenringweg 45B, 2803 PE Gouda, Nederland

 

 

ING_release_09060000_win.log

Martijn Laan

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Apr 13, 2026, 10:08:37 AM (11 days ago) Apr 13
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Hi,

Thank yoy for trying the preview. 

he log shows you're using various Windows functions and it's likely at least one of the prototypes you're using is not correct for 64-bit Windows functions. For example, many require the use of NativeInt instead of Integer.

ntdll.dll is one of the Microsoft files implementing these functions.

Please post your various prototypes (look for 'external').

Greetings,
Martijn




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