Performance and Reliability Update for Vista SP1

[rahimonline]

• This update improves the reliability of Windows Vista SP1-based computers that experience issues in which large applications cannot run after the computer is turned on for extended periods of time. For example, when you try to start Excel 2007 after the computer is turned on for extended periods of time, a user may receive an error message that resembles the following:
EXCEL.EXE is not a valid Win32 application

• This update improves the reliability of Windows Vista SP1-based computers by reducing the number of crashes that may be caused by the Apple QuickTime thumbnail preview in Windows Live Photo Gallery.

• This update improves the performance of Windows Vista SP1-based computers by reducing audio and video (AV) stuttering. Such AV stuttering may occur when the audio or video component is streaming high definition content from a Windows Vista SP1-based computer that has a NVIDIA network adapter nForce driver version 67.5.4.0 that is installed to a Windows Media Center Extender device."
Download : Performance and Reliability Update for Vista SP1 (32
Download : Performance and Reliability Update for Vista SP1 (64