I've had this problem for over a year but I did get some documents to create using the Word 2007 add-in. I need this capability to get live links from the TOC, cross-references, and equation numbers. The two computers run 64-bit Windows, both had the problem with Acrobat XI (and then Acrobat DC) running under Windows 7 and now Windows 10. Printing to PDF works OK but no live links, except that URLs are live in the PDF file. Documents are medium size, about 30 pages. There was a period in December 2014 and early 2015 when I did have some success with a document that had been consistently crashing if I used the Word add-in.
In one machine I un-installed Acrobat DC and re-installed Acrobat XI; no joy. Word simply crashes immediately and comes back without the Acrobat add-in. I moved the document over to the other machine and tried it with Acrobat DC, and it freezes. There is a small info window at the bottom of the main Word window that says that it quickly paginates to page 4 (past the TOC, list of figures, list of tables, first page or two). Then it takes about 20 minutes a page. The Adobe progress bar shows no progress, and the title bar adds "Not Responding." Leaving it for hours never gets past page 11. Killing Word in the task manager winks it out without the save dialog; it comes back without the Acrobat add-in.
I use MathType 6 (current version) for my equations (lots of them). The two computers are very different; one is a laptop with four cores and 8 GB RAM, the other a workstation with 16 GB RAM and eight cores.
Obviously I've done all the first steps, like making sure that the OS and Acrobat are up-to-date, re-installing, fresh boot, etc. This is looking like a stack or heap size problem within Acrobat, which doesn't make sense, because, well, new or malloc; there's plenty of free memory. The laptop, which hangs, is using one core (25% loading) and 26% of 8 GB of RAM.