I’ve bought and installed OfficeTabLoader, as I work A LOT with office documents – don’t know why I didn’t come up with the idea to optimize this before!
Anyways, right out of the box I get this Initialization error 4 from OfficeTabLoader.Dll.
It turns out that my Antivirus Software (Bitdefender) is the problem:
This works with heuristics to detect malware which is not even known yet.
Unfortunately there does not seem to be a way to add a .dll to the exception list.
I assume since this is an application modifying Word, additional alarm bells go off …
So the only possible solution right now seems to be to turn off this advanced threat defense: