Internet Explorer 11, under Windows 8.1, won't load ActiveX

I am running IE11 under Windows 8.1 64-bit pro. We are a performance venue and use a ticketing system that requires ActiveX for several important functions to work properly. When I am prompted to download ActiveX from within the ticketing system, the CAB file downloads but does not install. It causes IE11 to become unresponsive, and the program has to be killed by Task Manager.
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John_HolecekConnect With a Mentor Author Commented:
I installed ActiveX while running IE11 as an administrator and it installed.
John HurstBusiness Consultant (Owner)Commented:
In IE, Tools, Internet Options, Security, Custom Level, is Active X enabled?  

Does the same thing as above work on a different Windows 8.1 system?
John_HolecekAuthor Commented:
Yes, Active X is enabled. I'll try another 8.1 machine.
John_HolecekAuthor Commented:
Our IT person suggested trying to install ActiveX while running IE 11 as an administrator, and it worked.
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