Visual Studio 2010 Release Candidate includes a copy of the Visual C++ 9.0 Redistributable. The copy of the Visual C++ 9.0 Redistributable in Visual Studio 2010 Release Candidate contains a version of the security update that is newer than the version that is included in security update 973924. However, this copy does not include certain registry keys that are used to identify the version of the security update in the redistributable. Microsoft Update detects the new version without the required registry keys, but incorrectly flags security update 973924 as required.