Since this security update we encounter the same problem in our company. We cannot drag and drop text from our knowledge base (in HTML Application) to the InfoPath Forms. The workaround for now, is to drag and drop the text to Excel and than drag and drop the text to the Infopath form. But this costs a lot of extra work. We urgently are looking for a solution.
We already tried a lot of keys in the Windows Registry to solve this problem, but we cannot fix the problem. Doe anyone have a clue to solve this serious problem?