On a Windows Vista or Windows 7 system, if you have the ability to install software on the system but are having problems installing VSTO using the Plug-in for PPM installer, you may need to invoke the Plug-in for PPM installer as an administrator. Do the following:
Right-click on the
setup.exefile and select Run as administrator.
Follow the prompts to install VSTO. Install only VSTO (do not install the Plug-in for PPM at this time).
After VSTO is installed and you have exited from the Plug-in for PPM installer, install the Plug-in for PPM (see Installation Instructions).