Office 2007 installs the PIA's if the Framework is already installed when
Office 2007 is installed unless a custom installation disables installation
of the PIA's. If the Framework is not installed Office 2007 doesn't install
the PIA's. The Framework is not required for Office 2007.
For Office 2003 the PIA's are installed only for a custom installation where
they are selected for installation.
The redistributable PIA package for Office 2007 includes extensibility and
stdole. The Office 2003 redistributable package for the PIA's does not
include either extensibility or stdole and those plus possibly a registry
lockback key need to be installed separately. There's a KB 908002 for that.
When you install VS you most likely got stdole and extensibility installed
for you during installation.
[MVP - Outlook]
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.