Valued Microsoft Customer,

If you are still evaluating or testing the updates detailed in Microsoft Security Bulletin MS04-011, we strongly recommend that you expedite your review and deployment of these updates as soon as possible. These updates will protect your systems from the Sasser worm and its variants. If your systems have become infected, we have made a tool available for download that will detect and remove the Sasser worm and its variants. The tool is available at www.microsoft.com.

In addition, on Tuesday May 4th, the Security Business and Technology Unit and Product Support Services are hosting two technical Web casts to provide the latest details of the Sasser worm and answer your questions about deploying MS04-011 to help protect your network.

Please join us for one of the following Web casts by registering using the links below. The Web casts also will be available on demand at the same links.

Tuesday, May 4th, 9:00 am - 10:00 am PT TechNet Webcast: Technical Update on the Sasser Worm go.microsoft.com

Tuesday, May 4th 6:00 pm - 7:00 pm PT TechNet Webcast: Technical Update on the Sasser Worm go.microsoft.com

For the latest information on Sasser and the cleaner tool, please go to www.microsoft.com/sasser.

For technical details on Sasser and manual steps to remove, please to go www.microsoft.com .

Thank you,

Microsoft Corporation