Microsoft Download Center Archive

Security Update for Microsoft .NET Framework 3.5 Service Pack 1 on Windows XP, Windows Server 2003, Windows Vista, and Windows Server 2008

  • Published:
  • Version: 3.5
  • Category: Security Patch
  • Language: English

A security issue has been identified that could allow an unauthenticated remote attacker to compromise your system and gain control over it.

  • A security issue has been identified that could allow an unauthenticated remote attacker to compromise your system and gain control over it. You can help protect your system by installing this update from Microsoft. After you install this update, you may have to restart your system.
Knowledge Base Articles:
Security Bulletins:

Files

Status: Deleted

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

FileSize
NDP35SP1-KB2604111-IA64.exe
SHA1: 311a81b930580c9a045a1b04875b82cd33adfee2
834 KB
NDP35SP1-KB2604111-x64.exe
SHA1: 01fb9c1c60d9729d07977a7b142aab80ce9cc389
833 KB
NDP35SP1-KB2604111-x86.exe
SHA1: 4c2840092b5593dee6e81870f07803a3346ae74d
795 KB

System Requirements

Operating Systems: Windows Server 2003, Windows Server 2008 Service Pack 2, Windows Vista Service Pack 2, Windows XP

Installation Instructions

    1. Click the Download button on this page to start the download, or select a different language from the Change language drop-down list and click Change.
    2. Do one of the following:
      • To start the installation immediately, click Run.
      • To save the download to your computer for installation at a later time, click Save.
      • To cancel the installation, click Cancel.