SQL Server 2000 Service Pack 4 (SP4) adds platform support for Microsoft Windows Server 2003 x64 Edition, allowing 32-bit SQL Server 2000 applications to run on 64-bit platforms using the Windows on Windows emulator (WOW64). SP4 addresses specific issues discovered in SQL Server 2000 since its ship date. SP4 is also the first service pack to service the 64-bit edition of SQL Server. Beta Testers received the following email regarding the product's immediate release: "As you may know, SQL Server 2000 Service Pack 4 is now a released product. The bug reports you submitted, the issues you brought to the beta newsgroups, and the time you contributed to testing helped make it possible for us to ship an outstanding new version of SQL Server 2000 Service Pack 4.