Workspaces retirement and Acrobat XI

For Acrobat XI, X and 9 users, when you select “Send for Shared Review” in your Acrobat software, the option to download and track comments with Adobe online services will no longer be available. You will still be able to initiate Shared Reviews from within Acrobat using your own internal server – such as a SharePoint workspace, a network folder, or a web server folder – to collect comments.

See http://forums.adobe.com/docs/DOC-4203