Since Delphi has a per user license agreement, silent mode installations of the product are not supported. Quoting directly from the license.txt file:
"You may install the Product on a reasonable number of machines provided that the Named User is the only individual permitted to use the Product"
This being stated, as long as you are adhering to the license agreement, there shouldn't be a need to automate the installation process since the product shouldn't be installed on more than a handful of machines.
Last Modified: 28-MAY-03