Can't install Office 2003 in Windows 7

I'm trying to install Office 2003 back on my PC after installing Windows 7, and it keeps giving me an error message that the installer is 'not a valid Win32 application?'  I've seen posts that others have successfully installed it, so am I missing something that I need to do?  I was curious if Office would only run in XP mode possibly, which I have not set up on my computer, but may need to if this is the case

Hi Josh D7777,

Thanks for using the Answers Forum.

What version of XP did you upgrade from? 32-bit or 64-bit?
Is this Windows 7 32-bit or 64-bit?

Are you installing it the default folder or are you choosing a different location?

Windows 7 is compatible with Office 2003.
You might try copying the contents of the CD to the hard drive and installing from there.
You could also try XP compatibility mode.

You can also use the System File Checker to make sure there are no corrupt or missing Windows 7 files causing the issue.
Here's an article on how to use SFC:

It says Vista, but it should work the same for Windows 7.

Please let us know how this works out.


Microsoft Answers Support Engineer
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Question Info

Last updated March 31, 2021 Views 282,618 Applies to: