When you uninstall Office 2000, it tends to leave tags ends - files as well as registry entries. Microsoft has released a freeware utility, Office 2000 File and Registry Eraser. This utility was not designed to uninstall Office 2000, only to cleanup after the incomplete job done by Office 2000's uninstall program.

For Microsoft kb article on this utility : Q247674

For the Office 97 version : Q176823

If you need to change the location for Office source files, see Q267362 : OFF2000: How to Change Server Location for Office Source Files

See the Microsoft Office 2000 Resource Kit Toolbox for a comprehensive set of information, tools, and converters designed to help you deploy, support, and maintain Microsoft Office 2000.