Daz uses the bitrock installers (www.bitrock.com). In the past I got as far as creating a config file that could be used to automate the installation (with a silent install), but became distracted with other things and never got back to it before it was 100% working.

(http://installbuilder.bitrock.com/installbuilder-faq.html#A2_3)

How can I perform a silent installation?

You can perform a silent installation, using the --mode unattended option from the command line:

$ ./sample-installer.bin --mode unattended

This will perform an unattended installation that will not prompt the user for any information. Any required information can be passed to the installer using command line switches. This mode allows for easy integration of the installer into your own scripts.