Ever create a group policy for a specific user or machine group but can’t go to every machine to force the update? Well there is a great tool by Specops called Specops Gpupdate 2.0.  By default the policy refresh is every 90 minutes, but if you deploy a new policy and can’t wait 90 minutes or you have machines in multiple locations than Specops Gpupdate 2.0 is the right tool.  This free tool snaps into to Active Directory and allows you to force a Group policy update immediately.  Tool also has remote shutdown and wake on LAN functionality as well.  To see more details got to the following link:
http://www.specopssoft.com/products/specopsgpupdate/