Windows Server 2003 build 3790.1218 (dnsrv idx01)

Windows Server 2003 build 3790.1218 (dnsrv_idx01) is a Service Pack 1 beta build of Windows Server 2003, which was originally only available in the IA-64 architecture, as the x64 version was lost. On 2 January 2020, the x64 version of this build was uploaded to BetaArchive. An Standard SKU of this build is also known to exist, but has yet to be found.