I've tested it out with Adobe Reader version 10, 11 and DC. The "bDisableSharePointFeatures"=dword:00000001" registry fix works well. However, it doesn't work with Adobe Acrobat XI 11.0.12. Does anyone has experience with this version?
Just checked and this works fine for me in Acrobat 11.0.12, it seems that you might probably be creating the feature lock down keys in the wrong registry location. Can you create the following registry hive and get back, if this resolves your problem?