I have just tried to install Outlook 2007 on my free-standing desktop at
home, which has cable modem internet. Through Control Panel / Mail icon, I
created a profile, and the program got confirmation from the ISP.

But when I attempted to install a data file, using a .pst file already on
the computer, an error message appeared, simply saying 'This information
service is not installed on your computer'.

What does that mean? What do I need to do to resolve this?

Thomas