For better or worse, I have a laptop and a desktop at home. I primarily use the laptop, but sometimes I use the desktop, which was my old office desktop and has a large library of relevant old emails, and some more recent/new ones. I would like to share/sync Outlook between them, as if they were one computer (although I don't think the two computers are even currently "networked"). How do I do this. The desktop is running Windows XP. The laptop is running Windows Vista. I am thinking of replacing the desktop with a new CPU which would have Windows 7, transferring all data to that new CPU and upgrading my OS to from Vista to Windows 7, tot he extent that changes/influences the answer to this question. Thanks.