I have allso still the issue. In the solution is descripted that the "Microsoft SharePoint Foundation Support" should not be installed, but how should this work "Office 2016" is a click and install Setup.
It is possible to make a custom install but, I found no entry to exclude a specific feature from the installation.
Can you descripe who do you removed the SharePoint Foundation Support?
My application creates a local disk with WebDav (AOS). When I edit a document in docx format from MS Word 365, the document opens without having to provide credentials, but I cannot save the changes to it. When I edit from LibreOffice or MS Word 2007, a window appears to provide my WebDav credentials, and then the changes can be saved. Is it necessary to add an SSL certificate to edit in later versions of MS Word or is it something else?