How to download the latest beta malicious software definition update for Forefront Client Security

To download the Microsoft Forefront Client Security beta malicious software definition update for 32-bit (x86-based) versions of Windows, click the following link:To download the Microsoft Forefront Client Security beta malicious software definition update for 64-bit (x64-based) versions of Windows, click the following link:After you click the link, click Run to install the update immediately. Or, click Save to save the update to the computer. If you click Save, remember the folder where you save the update.

To install the saved update, click Start, click Run, locate the folder where you saved the update, double-click the update file, and then click OK.

NoteTo install the update on a computer that is running Windows Vista, right-click the file, and then click Run As Administrator. If you are prompted for an administrator password or for confirmation, type the password, or click Continue.

When the update runs, a file extraction dialog box appears. This dialog box indicates that the definition is installing. After the dialog box closes, you can verify that the Microsoft Forefront Client Security definitions have been updated. To do this, open Microsoft Forefront Client Security, and then note the definition version at the bottom of the Microsoft Forefront Client Security Home dialog box.

You can use the -qcommand-line switch to install the update. This switch installs the update in quiet mode. Quiet mode suppresses the file extraction dialog box. To install the update in quiet mode, type the following command:NoteTo run this command, you must use an account that has administrator rights.

Technical support for x64-based versions of Microsoft Windows

If your hardware came with a Microsoft Windows x64 edition already installed, your hardware manufacturer provides technical support and assistance for the Windows x64 edition. In this case, your hardware manufacturer provides support because a Windows x64 edition was included with your hardware. Your hardware manufacturer might have customized the Windows x64 edition installation by using unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with a Windows x64 edition. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware. If you purchased a Windows x64 edition such as a Microsoft Windows Server 2003 x64 edition separately, contact Microsoft for technical support.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:

http://www.microsoft.com/windowsxp/64bit/default.mspx

For product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site:

http://www.microsoft.com/windowsserver2003/64bit/x64/editions.mspx

For product information about 64-bit versions of Windows Vista, visit the following Microsoft Web site: