GPMC is very useful tool when we manage The Group Policy.
You can create, modify, delete and backup the Group Policy Object easily and quckly with GPMP.
Download : http://www.microsoft.com/downloads/details.aspx?FamilyID=0A6D4C24-8CBD-4B35-9272-DD3CBFC81887&displaylang=en
You can excute only type in run
If you are administrator of Windows 2000, 2003 based Active Directory.
You must using GPMC.