I downloaded and installed 3D XML Player. No warnings or errors during install. When I try to open 3DXML Player however, I get a quick pop-up "The incident report manager is trying to get unexpected behavior context of the guarded application" and then it errors out. (just prior to that I get an Active-X control box, which I respond with "Allow") I uninstalled it and re-installed it several times, always same result.
I am running Windows 7-64, IE11. No Java on my machine. I did notice that 3D XML Player is validated for IE10, did not say anything about IE11.