DirectX Rollbacker is a manage tool of Microsoft DirectX, through it, you can CD-RollBack, Backup, Restore DirectX to your OS.
Backup: This feature can help you BACKUP current DirectX so that can be RESTORED when you need.
Restore: This feature can help you RESTORE DirectX form Previous BACKUP.
CD-Rollback: Very Important feature, it can help you Rollback original DirectX from WINDOWS
Special Setup: Install DX 9.0c to your WinXP SP2 and to your Win2003 SP1.