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SQL Server 2005 SP4 is available on Microsoft Update and on Windows Software Update Services (WSUS). Customers may find the SQL Server 2005 SP4 upgrade packages for Standard, Workgroup, Developer and Enterprise Editions is available as an optional update on the Microsoft Update website and visible after performing a custom scan. The packages will be offered for each language and platform we support. All of these updates will also be available through Windows Software Update Services (WSUS). To search for SQL Server 2005 SP4 as well as other Microsoft updates please visit: http://www.update.microsoft.com/microsoftupdate/.
In addition to the Microsoft Updates, the SQL Server 2005 SP4 update version for Express Edition, Express Edition with Advanced Services, and Express Toolkit will be available as an automatic update. This update will be automatically downloaded and installed if you have elected to receive updates through Microsoft Update/Windows Update and have enabled automatic updates on your Windows system.