Microsoft releases help and support knowledge base article (ID:937286 ) said that the Independent Installer (MSU) Vista SP1 did not contain the updated with the help of documents, users need to download and install because in order to reduce file size MSU by Microsoft.
Download 32 bit help file.
Download 64 bit help file.
All the vista SP1 help files are supported English,French,German,Japanese and Spanish Languages.
Microsoft also released the Vista SP1 white paper that contained overview vista SP1 improvement with pdf and xps file formats.
Download Vista SP1 pdf format.
Download vista SP1 xps format.