If the machine you're installing Dataedo Web doesn't have access to the internet, you can use the offlline installation option. This option will be publically available in Dataedo Web 9.1.3.
Before you run the installer, you'll need to install additional components from Microsoft first:
Web Server (IIS) Windows feature (installed from the Control Panel or Settings menu)
In some cases, installing these modules will require restarting Windows to take effect.
After installing the components above, run Dataedo Web installer and after choosing the installation location, choose the offline installation option: