Windows NT 4.0 Service Pack 6a (SP6a) resolves the SP6 issue with Lotus Notes and other Winsock based applications and provides the latest updates to Microsoft Windows NT Workstation 4.0 and Windows NT Server 4.0 (including Enterprise Edition). Windows NT 4.0 SP6a contains known Year 2000 updates for Windows NT 4.0. These Year 2000 updates are also available as separate Web downloads that you can apply to a Windows NT 4.0 Service Pack 4 system. Windows NT 4.0 SP6a is not a required upgrade for Year 2000; Microsoft recommends that each customer consult the Windows NT 4.0 SP6a documentation and then determine whether to deploy it. This version is the first release on CNET Download.com.