On Wednesday 6th August 2014, we announced that as part of our ongoing commitment to delivering a more secure browser, starting September 9th Internet Explorer will block out-of-date ActiveX controls. (Note: The original post stated that the ActiveX blocking would begin on August 12th. Please refer to the addendum for further details).
Please take a look at this important update via the blog post as well as the FAQ contained therein and commence testing within your domain.
Thanks and Regards
Mark
Mark Feetham Senior Supportability Program Manager, Internet Explorer.