Question : Windows 2008 32bit to 2008 64 bit R2 upgrade

Hi - is it possible to upgrade a system from 32bit Windows 2008 to 64 bit Windows 2008 R2.  I have an application that I prefer not to migrate if possible.

Answer : Windows 2008 32bit to 2008 64 bit R2 upgrade

Not as far as I know. You will have to do a full re-install.