So, I've been on vacation this past week. Before leaving, I ran 'daily ; daily ; daily ; daily ; daily' to make sure they daily build scripts still ran while I was gone.
Looking at the logs, I found something interesting: wordviewer03-result.txt:wordview_en-us.exe didn't crash. Bug 19185 TODO_FIXED. wordviewer03-result.txt:C:\users\austin\Application Data\Microsoft\Installer{90850409-6000-11D3-8CFE-0150048383C9} doesn't exist. Bug 19318 TODO_FIXED. Some TODO_FIXED...investigate! (from http://austinenglish.com/logs/appinstall-2009-08-21/summary.txt)
Looking at the git log, there were only a couple msxml commits, so I tried reverting them to see which one fixed it. Apparently this one did: http://source.winehq.org/git/wine.git/?a=commitdiff;h=38c0667334d7b929607a3b...
So thanks Jacek, you fixed a 1.2.0 bug and probably didn't even know it ;-).
Now, everyone write some tests for your favorite downloadable application! :-)