In mid-March 2001, VeriSign, Inc., informed Microsoft that it had issued two code-signing digital certificates to an individual who fraudulently represented himself as a Microsoft employee. Microsoft has released an update that will prevent code signed using these certificates from being trusted.

Microsoft has released an update that resolves an error which occurs when the Windows XP Step By Step Interactive (SBSI) training program is installed on an NTFS partition and you are not logged on with Owner, Administrator or Power User privileges.

Advanced Micro Devices (AMD) offers PowerNow! technology on AMD mobile Athlon 4 and mobile Duron processors. AMD PowerNow! technology adjusts the processor's performance and power consumption by dynamically adjusting the processor's operating frequency and voltage.

This download is part of the material for the article titled ".NET and Windows XP COM+ Integration with SOAP".

Reflect your patriotic spirit with this American Flag screen saver.

The Windows XP startup disk allows computers without a bootable CD-ROM to perform a new installation of the operating system. The Windows XP startup disk will automatically load the correct drivers to gain access to the CD-ROM drive and start a new installation of Setup.

The Windows XP startup disk allows computers without a bootable CD-ROM to perform a new installation of the operating system. The Windows XP startup disk will automatically load the correct drivers to gain access to the CD-ROM drive and start a new installation of Setup.

This download contains the DVD-ROM boilerplate video, which is provided for developers producing DVD-ROM titles that contain no DVD-Video formatted data.

DirectMusic® Producer is the authoring tool that allows composers and sound designers to create content for DirectX audio.

This project of demo content contains musical and audio examples of many of the new DirectX® 8.1 features. The project will install to "My Documents\DMUSProducer\Demo8\" on your hard drive.

This download contains modeling package plug-ins for extracting skinning information for use with Direct3D®. It contains plug-ins for 3DStudio Max 3.0, 3DStudio Max 4.0, Maya 2.5, Maya 3.0, and Maya 4.0.

This download contains a DirectX 8.1 Application Wizard that can be plugged into Microsoft Visual C++. The AppWizard creates a minimal C++ template application for DirectX applications.

This update fixes the scenario in which Windows XP Volume and OEM skus cannot initiate Remote Assistance connections to one another. Download now if you experience this issue.

This update fixes the scenario in which Windows XP Volume and OEM skus cannot initiate Remote Assistance connections to one another. Download now if you experience this issue.

Make voice calls from your computer to a phone anywhere in the world, have video conversations, and take advantage of several ease-of-use enhancements like grouping your contact list, new task-based menus, and cool, new emoticons.

DLC is a transport protocol commonly used for communicating with mainframes. This DLC protocol is provided as is and is intended to be used only with Windows XP and Windows Server 2003 family operating systems.

This update resolves the “Unchecked Buffer in Universal Plug and Play Can Lead to System Compromise” security vulnerability in Windows XP. Download now to prevent a malicious user from compromising your computer, or using it to interfere with another computer's operation.

Microsoft has released a patch that eliminates a denial of service vulnerability in the C Runtime for Microsoft Windows NT 4.0, 2000 and XP.

Microsoft has released a patch that eliminates a denial of service vulnerability in the C Runtime for Microsoft Windows NT 4.0, 2000 and XP.

Microsoft has released a command-line tool that easily enumerates all of the installed fixes by Microsoft Knowledge Base article number.