SQL Server 2000 Developer Edition (64-bit) was a niche release designed specifically for the Intel Itanium (IA-64)
If you have resolved the Itanium hardware issue, here is a generic restoration path. ms sql server 2000 developer edition 64 bit
The ultimate forward path: Use Microsoft’s Data Migration Assistant (DMA) to assess SQL 2000 databases. Most schema and data can be migrated to Azure SQL Managed Instance, which offers full 64-bit performance, PaaS ease, and complete modern security. SQL Server 2000 Developer Edition (64-bit) was a
Because it was a first-generation 64-bit product, it had several unique constraints: which offers full 64-bit performance