Update for Windows Server x64 / Windows XP x64 (KB911021)

Install this update to fix errors that may occur when running a 32-bit program that has the /LARGEADDRESSAWARE switch enabled on a computer that is running a 64-bit version of Windows. After you install this item, you may have to restart your computer.
Download:
Update for Windows XP x64 Edition (KB911021)
Update for Windows Server x64 Edition (KB911021)
Update for Windows Server 2003 for Itanium-based Systems (KB911021)