When upgrading from TMWF8 to TMWF9, the upgrade crashed. This error came up.

Messaging Security Agent installation failed. Fail to Setup SQL Server 2008 R2 Express Service Pack 2 instance SCANMAIL. Refer to the setup log (%ProgramFiles%\Microsoft SQL Server@\setup Bootstrap\Log) for details.

Setup.exe has stopped working.


We found to continue the install we need to uninstall the old SQL instance for the TMWF8 and then it installed fine.