According to the Microsoft .NET Framework Support Lifecycle Policy FAQ (http://support.microsoft.com/gp/framework_faq?wa=wsignin1.0), .NET Framework 3.5 SP1 is still being supported as an OS component.
Since .NET Framework 3.5 SP1 is still being supported in most of the OS, will the instance of .NET Framework 3.5 SP1 also receives security update/hotfix when it installed under Windows XP?