eXoScoriae

Ah ha!

I used the rotwk patch switcher and rolled it back to 2.02 v8.0.1 and it fixed it. 

Previously I had it set to 2.02 v8.2.0

I've got the exact same issue. On one machine it worked after I uninstalled everything and re-installed it all again. But on this one that didn't fix it.

I installed both games from scratch. Applied the official patch (1.06 and 2.01 respectively) and then the unofficial patches (1.09 and 2.02)
I installed bfme2 HD. I copied the new options.ini files to my roaming data folder.  and then I installed Age of The Ring 4.1.

BFME2, BFME2 HD, and ROTWK all launch fine. But Age of the Ring gives the haradrim voice error.

I did see it stated to roll bfme2 back to 1.06. I did this, but it did not fix the error.

follow-up:

I re-ran all of the above steps on a second computer and it worked fine. The only difference being that on the first computer I had games install to the D:.

So I uninstalled everything on the first computer, and then resetup it all up. This time I allowed it to use the default C:. Now it works.

So even though it lets you choose where to install, it appears that it doesn't work unless you use the defaults.