Service Pack 4 for SQL Server 2000 is now available.
It has been a long time in beta, but before you install it (especially on production), read the readme that comes with it. There are changes that may affect the way some of your applications behave.
If you used undocumented commands, Microsoft may have changed them or the security has been tightened. As they are un-documented, they will not be mentioned as having changed in the readme. They are undocumented for a reason, so Microsoft can change them at will. Read and Writing to/from the Registry is affected.
Get it here http://www.microsoft.com/sql/downloads/2000/sp4.asp
32 bit, 64 bit Itanium, MSDE and Analysis Server
SELECT @@VERSION returns 8.00.2039
A bit on x64 support:
With Microsoft Windows Server 2003 x64 Edition, SP4 provides support for 32-bit SQL Server applications on 64-bit architectures using the Windows on Windows emulator (WOW64). For more information on specific 64-bit platforms supported, see the Windows Server 2003 x64 Editions Product Overview.
SQL Server 32-bit applications, including SQL Server client tools, are still not supported on WOW64 for IA64. Also, currently 32-bit Reporting Services is not supported to run on WOW64 on IA64 and x64 platforms running Windows Server 2003 x64 Edition.