It was the final version to support Windows 95 . Modern Compatibility Tips
If you're seeing errors related to "drivers" or "installation failed," it's likely a compatibility issue with your current operating system: Microsoft Office 2000 (1999) - Time Travel Microsoft Office 2000 Driver
If you are trying to get this vintage suite running on modern hardware or looking for ways to maintain it, here are the key details for a post: Release Date: June 7, 1999. End of Support: July 14, 2009. It was the final version to support Windows 95