Is "Update for Microsoft Visual Studio 2012 (KB2781514)" offered by Wsusscn2.cab / WSUS ?

Hi,

I download Wsusscn2.cab manually and use the Windows Update Agent API to manually detect missing updates, which I then download manually and install.

I've opted in to Microsoft Update (http://msdn.microsoft.com/en-us/library/windows/desktop/aa826676(v=vs.85).aspx) and get offered Windows Updates as well as Microsoft Office updates.  I also get all the .NET updates.

However, I was not offered "Update for Microsoft Visual Studio 2012 (KB2781514)" or other Visual Studio 2012 updates .  When I use regular Windows Update on my home computer, I get offered Visual Studio updates.

What services do I need to register with Windows Update Agent API to make sure I get "everything"?  Is opting-in to Microsoft Update the only service to "get it all"?  Thanks.