Well, as you mentioned, GPO would have been the best option to update across an enterprise network. You can refer to the guide at http://kb2.adobe.com/cps/837/cpsid_83709/attachments/Acrobat_Enterprise_Administration.pdf. It may give you some more tips on how to maybe change your settings to ensure a speedy install.
As far as your second question is concerned, you can use the "Automatically Install Updates" option for the Reader Updater, which will automatically install the updates as and when it downloads any. The registry entry to set the same is as below:
Prior to Reader 10.1:
Name: iCheck (DWORD)
Post Reader 10.1:
Name: iCheckReader (DWORD)
You can set the same using a login script via GPO itself. This will ensure that any and all updates as and when available will be installed as soon as its downloaded, provided no process of Reader is running at that time.
For more details on all the configurations on the updater preferences, please refer to the following document:
Hope this helps
Thank you very much for your reply.
I guess haven't given up entirely on GPO deployment. I've read parts of the document you mentioned but not _everything_, so perhaps there is a tip that I missed buried somewhere in there?
In anycase, with the registry settings you posted my options have broadened a bit, so if GPO truly doesn't work out then I will have that to fall back on. Thanks very much!