Question

I have been trying a workaround for this, for quite a long time, but haven’t found one yet.
On calling Documents.Close(), Word, which was opened with visible = false, becomes visible.

This is my close statement (document is already saved so no need to save again):

    WordApp.Documents.Close(Word.WdSaveOptions.wdDoNotSaveChanges,
    Word.WdOriginalFormat.wdOriginalDocumentFormat);

Answer 1

You could just call WordApp.Quit().

Office apps still follow the MDI approach: You run 1 App and in that app you can open 1 or more documents.

It’s easy to lose track of that App in the background as we usually only open one document. But there are two levels of Close here.