Microsoft Knowledge Base Article 903234 contains the following summary and introduction:

SUMMARY

An update is available to add support for the Microsoft Data Protection Manager End User Recovery feature to the Shadow Copy Client. The Shadow Copy Client may also be referred to as the "Timewarp" client.

After you install this update, the updated Shadow Copy Client can recover data from a Data Protection Manager server if a Data Protection Manager server is available.

INTRODUCTION

This article describes an update that is available for the Shadow Copy Client. This update is available for Microsoft Windows Server 2003 and for Microsoft Windows XP. This update performs both the following actions:

• This update adds support for the Microsoft Data Protection Manager End User Recovery feature to the Shadow Copy Client. Therefore, the Shadow Copy Client can recover files from a Data Protection Manager server.

• This update optimizes the way that the Shadow Copy Client accesses shadow copies in Windows Server 2003 and in Windows XP.

Note If you install KB 903234 on a computer that is running Citrix Presentation Server or Citrix MetaFrame, you may not be able to copy files when you use Windows Explorer. These products are made by Citrix Systems, Inc. A supported KB 903234 is now available from Microsoft. However, if you have products that are made by Citrix Systems, Inc., we recommend that you wait for the next version of the KB 903234 hotfix.