Inno-Setup checking file location prior to installation, then using it during installation 1 Inno Setup Trying to create a new Install DirectX Template Product for Modular InnoSetup Dependency Installer. Nov 23, 2008  An extension for Inno Setup that allows you to check and update DirectX during the installation process DirectSetup for Inno (formerly ISX DSetup DLL) was designed to be an extension for Inno Setup that allows you to check and update DirectX during the installation process. I want to execute DirectX install by clicking Finish button and i want Inno Setup to wait for install this package. When a package installs then i want Inno to close installation wizard.

I'm using this code in [Run] section:

And when I try to reinstall program, every time I get pop-up with DirectX installation. How to prevent reinstalling DirectX, when it's installed already?

1 Answer

See ISXKB for DirectX - How to detect DirectX version article.

It has useful functions, which you can use to detect, if required version of DirectX is already installed on the machine.

Using these functions, you can easily implement a check function:

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