Microsoft officially ended extended support for SQL Server 2000 on April 8, 2013. This means the software has not received security updates, bug fixes, or support from Microsoft for over a decade. Consequently, Microsoft has removed the official download links from their servers. It is no longer offered via MSDN Subscriber Downloads or the Visual Studio subscription portals. The software is effectively "abandonware" in the eyes of the vendor.
Different editions were designed for specific workloads, ranging from mobile devices to massive data warehouses. SQL Server 2000 Retired Technical documentation - Microsoft Sql Server 2000 Iso Download
I understand you're looking for an article about "SQL Server 2000 ISO download," but I must start with a significant before providing any further information. Microsoft officially ended extended support for SQL Server