Ok, thanks @NPC99. I appreciate all the help you give to our community on this forum. The EMAssetPackages is where it seems that most of the assets for the mod tools scene editor exist. I was trying to see if I could use the tool to get the base assets and then modify them in blender. Ultimately we might have to wait a while before playing with the scene editor assets... I checked and I do have the appropriate .Net Framework installed.I've only used TpacTool with AssetPackages. I'd be surprised if it worked with EMAssetPackages as these weren't available for szszss to reverse engineer when she built TpacTool.
Are you sure you have .Net Framework 4.6.2. on your pc? TpacTool depends upon it.