Multiple Group Policy Preferences have been added to the Windows Server 2008 Group Policy Management Console (which are also available through the Remote Server Administration Toolset (RSAT) for Windows Vista SP1). Group Policy Preferences enable information technology professionals to configure, deploy, and manage operating system and application settings they previously were not able to manage using Group Policy.
A few days ago Microsoft released a new version of the Group Policy Preference Client Side Extensions.
Microsoft Windows XP (x86):
http://www.microsoft.com/downloads/details.aspx?FamilyID=e60b5c8f-d7dc-4b27-a261-247ce3f6c4f8&DisplayLang=en
Microsoft Windows XP (x64):
http://www.microsoft.com/downloads/details.aspx?FamilyID=249c1aed-c1f1-4a0b-872e-ef0a32170625&DisplayLang=en
Microsoft Windows Server 2003 (x86):
http://www.microsoft.com/downloads/details.aspx?FamilyID=bfe775f9-5c34-44d0-8a94-44e47db35add&DisplayLang=en
Microsoft Windows Server 2003 (x64):
http://www.microsoft.com/downloads/details.aspx?FamilyID=29e83503-7686-49f3-b42d-8e5ed23d5d79&DisplayLang=en
For more information on Group Policy Preference:
Group Policy Preference Overview:
http://www.microsoft.com/Downloads/details.aspx?familyid=42E30E3F-6F01-4610-9D6E-F6E0FB7A0790&displaylang=en
Windows Server Group Policy:
http://technet.microsoft.com/en-us/windowsserver/grouppolicy/default.aspx