PB migration to EB ActiveX Control "Permission denied"


Good Afternoon All,
I am having an issue with an app that I am trying to migrate from Pocket Browser 3 to Enterprise browser.
None of the ActiveX objects within the application appear to work, I have checked that Enterprise browser wll allow ActiveX legacy within the Config.html

I have also modified the regestry values to allow internet explorer to run ActiveX controls but this has not made any difference.
When trying to open the html file I get the following message from an Internet Explorer popup "Line 301, Char:2, Error: Permission denied, Code:0"
Can someone please advise on this issue as I'm not sure what else I can do. Sadly I do not have access to a debugger

Many thanks for your time in advance,