It could not run natively on modern x86-64 processors (Intel Core/Xeon or AMD Ryzen/EPYC). For those systems, users had to wait for the release of SQL Server 2005.
It was built to take advantage of the parallelism and threading improvements in Windows Server 2003, making it ideal for large-scale e-commerce and data warehousing. ms sql server 2000 developer edition 64 bit
Organizations still using legacy databases from this era generally isolate them in secure, offline environments or prioritize migrating the schema and data to modern cloud platforms like Azure SQL Database or modern on-premises versions like SQL Server 2022. It could not run natively on modern x86-64