Issues working with HDT PE

[Frosferes]

I'm trying to figure out how to work with HDT PE for Oldrim. I know about the just for fun HDT Havok Modifier but was hoping to find some software that can visualise the collision and physics models. Since I'm using Blender and don't currently have 3ds Max I was following this guide from 2010, hoping I could use Autodesk Softimage to convert between .xml and .fbx so that I could import the havok models in and out of Blender https://forums.elementalgame.com/395707/einfo-what-i-did-to-export-my-blender-249-model-into-havok-format-long-enab. But I ran into a problem when trying to install the havok plugin. When I open Softimage I get the following error message at the bottom of the window on start-up and the Havok menu doesn't appear on the toolbar at the top.

 

 

Since I don't feel like necroposting on a decade old forum thread I thought I'd ask here if they know what the problem is or if there's a better, more up to date way of doing this sort of thing. I'm not averse to using 3ds Max if it will save me some headache.

 

Thanks in advance.