The 32-bit version of Office 2010 is the recommended option
for most people, because it prevents potential compatibility
issues with other 32-bit applications, specifically
third-party add-ins that are available only for 32-bit
operating systems.
With the new release of Microsoft Office 2010 there are two
ways to install the new office 2010 system. The first is to
install the office system in 32 bit or 64 bit mode, and the
second is to use the one click online installation. The reason
why is the second method uses a virtualized system using the
CVH.exe and the CVHSVE DCOM security settings. This will NOT
work with document automation. Winword.exe MUST exist on the
server, or workstation that accesses the automation processes.
Check to see if the version of office is standard or
virtualized. To find out what version, click run on the
startup menu, type in winword. If Microsoft word opens you
have the correct installation, if you get a message that it
does not exist, you have the virtualized version. To correct
this problem you will need to uninstall the virtualized
version and install the normal or standard version. FYI the
standard installation is 599 meg, the virtualized online
installation is 1,591 KB.