Open the start menu, accessories, system tools, system information, choose tools from the drop down menu and run system file checker.
In the advanced tab configure it to look for changed or deleted files and then run it, when you see a changed version of DirectX use the restore original file option and when complete reboot for an exact copy of the originally installed DX or system files.
The Win98 tools allow you to fix almost any Windoze problem imaginable, but only if you know how to use them.

Every system I build or set up for a customer is easily returned to an as delivered status, it's saves me a ton of time and headaches and is EASY money.
