Download Microsoft .NET Framework 3.5 Service Pack 1 Update for Windows Server 2003 and Windows XP from Official Microsoft Download Center

Microsoft .NET Framework 3.5 Service Pack 1 Update for Windows Server 2003 and Windows XP

Important! Selecting a language below will dynamically change the complete page content to that language.

This update will disable the Web Browser ActiveX control (WebOC) when running WPF XAML Browser Applications (XBAPs) in the Firefox browser in partial trust.