Recently, I had to uninstall IE9 from a bunch of production machines for a client whose site I am working at. Because of other mitigating circumstances, this had to be done during the day, with notification to the user and without forcing a reboot. After a little bit of digging, I stumbled upon MS article 2579295, and after a little tweaking I was able to create a program with this command:
FORFILES /P %WINDIR%\servicing\Packages /M Microsoft-Windows-InternetExplorer-*9.*.mum /c “cmd /c echo Uninstalling package @fname && start /w pkgmgr /up:@fname /quiet /norestart”
Worked well executed in both a task sequence and as a program. Cheers.
danikuci 