Speed up taskbar thumbnail in Windows 7

Taskbar thumbnail is one of the greatest feature in Windows 7.When you work with many program,you can see the preview in taskbar just keeping the mouse cursor in taskbar.But sometimes it takes too late to see the preview of taskbar thumbnail.But you can customize it as a speedy taskbar that's why you can see taskbar thumbnail very quickly.For this go to Start/Run and write regedit.Then go to HKEY_CURRENT_USER/Control Panel/Mouse and double click in Mouse Hovertime.The value is given as 400 by default.Change it to 100 and Then OK.Close registry editor and see a Speedy taskbar thumbnail.