Mac OS 9: Microsoft Office 4.2.1 Compatibility Issues

There seem to be some compatibility issues with Microsoft Office 4.2.1 and Mac OS 9. Is there any way to resolve them?
There are known issues when using Microsoft Office 4.2.1 with Mac OS 9. Some can be resolved by doing a clean installation of Mac OS 9 and then reinstalling Microsoft Office 4.2.1.

Note: The installer may become unresponsive if you try to switch applications while it is running.

If the above steps do not resolve the issues, there are only two solutions:
Published Date: Feb 20, 2012