Internet Explorer 11 Download Manager will not start when virtualized with AppV 4.6 SP3 1

Internet Explorer 11 Download Manager will not start when virtualized with AppV 4.6 SP3
A co-worker recently ran into this problem at one of his projects. An Internet Explorer 11 add-on was virtualized using AppV 4.6 SP3 and the add-on uses the Internet Explorer Download Manager to serve up documents from a back-end. On the AppV client however pressing CTRL+J or going to the menu to start Download Manager ...