That file should be in the installer package. What is the exact error you are getting and at what stage?

I just tested it here with both the home and pro installer, and I do notice a problem with the installer. (don’t know if it is related or not though)

Here it says :

This setup does not contain all the needed components. Uninstall the current version and run the setup again, please

although I have Avast Pro (up-to-date) installed. ???