Microsoft Download Center Archive

Windows Search 4.0 for Windows Vista x64 Edition (KB940157)

  • Published:
  • Version: 940157
  • Category: Update
  • Language: English

Windows Search 4.0 is an updated component of Windows that enables instant search on your computer.

  • WS4 lets you perform an instant search of your computer. WS4 helps you find and preview documents, e-mail messages, music files, photos, and other items on the computer. Please refer to the Knowledge base article KB940157 for a full description of the technology.

    Note The WS4 installation process automatically upgrades previous versions of Windows Search technologies.

    This download is for Microsoft Windows Vista (x64) Service Pack 1 or higher and Microsoft Windows Server 2008 only. To download Windows Search 4.0 for other supported versions of Microsoft Windows, see Related Downloads below.
Knowledge Base Articles:


Status: Deleted

This download is no longer available on The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to August 2020.

FileSHA1 HashSize
Windows6.0-KB940157-x64.msu4822fc17456e6533f1128f1826b3b5253c3a8c6f11.89 MB

System Requirements

Operating Systems: Windows Server 2008, Windows Vista 64-bit Editions Service Pack 1

Installation Instructions

    1. To start the download, click the Download button on this page and then do one of the following, or select another language from Change Language and then click Change.

      • Click Run to start the installation immediately.

      • Click Save to copy the download to your computer for installation at a later time.

Related Resources