http://bugs.winehq.org/show_bug.cgi?id=30713
--- Comment #3 from Dan Kegel dank@kegel.com 2012-05-17 15:57:32 CDT --- Thanks, AF.
I just checked in a change to winetricks so 'winetricks vcrun2010' installs both 32 and 64 bit runtimes if WINEARCH=win64. It's a bit of a kludge, but it makes at least one app happy.