https://bugs.winehq.org/show_bug.cgi?id=38125
--- Comment #4 from Ken Thomases ken@codeweavers.com --- I believe that Nikolay was mostly asking in order to help diagnose the issue. Knowing that native riched20 works around the issue isolates the problem to a deficiency in Wine's built-in riched20.
He wasn't suggesting that Wine wouldn't or couldn't fix the problem.
Having your clients install native riched20 is a potential workaround that you can recommend as you see fit until Wine is fixed, but is not considered a solution.