Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - Technical Issues Setup Error with Physical Disc

I'm trying to install Original Sin using the disc that came with the Kickstarter Backer Edition, but when I run the setup executable it returns an error saying, "No language configured". I'm not given an opportunity to actually select a language to run the setup in. Is there an option I can change/add/rewrite in the autorun or setup .ini's to fix the issue?

Do you have Steam installed already? I don't know if that would make a difference.
I don't know if there are any command line arguments that could be added to specify language. AFAIK the kickstarter version should default to English.

You can just add it to you Steam library and download it completely, though installing from the disk would save on a good chunk of the download.

I have Steam installed. I was able to activate the game using the key on the back of the manual but, as you had suggested, I was hoping to use the disc installation to save some of my limited bandwidth. The estimated 8 GB is about 60% of my monthly limit (hoorah for satellite internet).

Try right clicking on the Setup.exe file and running as administrator. I just double clicked it and a small 'Choose language' window comes up with a dropdown list (defaulting to English, and listing German, French, Russian and Polish) and OK / Cancel buttons.
Maybe right click, select Properties and set it to run in a compatibility mode (might need to create a shortcut to the setup.exe file and set the shortcut to use a compatibility mode).

Maybe in the 'support' folder try installing the DotNet and VC redistributables, in case the installer itself is using something from there (it shouldn't).

Are you shutting down all non-essential programs before starting installer? (especially anti-virus or any automation programs that may be hitting buttons before you can see the window)

A combination of restarting my computer, running the setup as an administrator, and in compatibility mode for Windows 7 allowed the language select box to appear instead of dumping immediately into an error message. Installation then proceeded normally.

Unsure why it worked, but I greatly appreciate your help, Raze. Hopefully this post will help if the same problem crops up for anyone else.