Can Office 2003 and Office 2007 both be installed in Windows 7 at the same time?
That’s the basic question from subscriber Bill Dawson of Australia:
Many thanks for your reply to my last question awhile back.
My question today is whether I can install both Office 2003 and Office 2007 into Windows 7?
I had good news and bad news for Bill, though. I haven’t tried it under Windows 7.
Office 2007 is supposed to be able to co-exist with Office 2003 on the same computer and in the same Windows installation (meaning, it doesn’t have to be in a separate bootable partition with an other copy of Windows installed in that one).
There are a couple of limitations, though.
First, you can only have one version of Outlook installed. You have to choose — either install Outlook 2003 or Outlook 2007. Both can’t be installed at the same time.
Second, the installation order is important. Office 2003 would have to be installed first. Office 2007 knows about Office 2003 and how to co-exist peacefully. Office 2007 can be instructed to keep Office 2003 installed or to replace it.
However, if you installed Office 2007 first, and then installed Office 2003, Office 2003 doesn’t know Office 2007. It would be likely to overwrite critical files.
My experience in installing Office 2007 after installing Office 2003 was when I was running WIndows XP. It was not a good experience.
Installation went OK. However, every time I started Word 2007 it messed up the Word 2003 installation, and vice versa.