Every user on a computer is required to do the initial activation is required in order to use Digital Editions. Activation in turn requires acces to adeactivate.adobe.com on port 80. If you are not able to create the firewall rule to allow this, you will not be able to install and use Digital Editions.
Note - the initial prompt is for the choice of either "Authorization" or "Activation" - the difference being that if you "Authorize" you activate your computer with a particular AdobeID, but if you just Activate, you are creating an anonymous account that the computer is activated to. In either case the requires talking to the Adobe servers to do (adeactivate).
Thanks for your response Jim,
What I need is to find out how to automatically activate all installations before the user opens the software for the first time. Authorization is not required for anyone using this software within our organization.
Surely if Adobe is serious about privacy and gives the option for children and users of public computers to only activate this software there should be a way for administrators to install the standalone application without having to modify the security and possibly the integrity of their network.
I understand opening one port to one site may seem insignificant but it's just not possible to do this in our situation without unnecessarily tying up resources.
Unfortunately, the only way activation can be done is during the normal course of the first launch of the program.