Windows XP A to Z - http://www.softwaretipsandtricks.com/windowsxp
DirectX Diagnostics and System Info
http://www.softwaretipsandtricks.com/windowsxp/articles/202/1/DirectX-Diagnostics-and-System-Info
Super Admin
 
By Super Admin
Published on 02/23/2005
 
You can see what version of DirectX you have and test all types of DirectX based things like direct-draw and Direct3D by doing this

DirectX Diagnostics and System Info
Click on the Start button
Select Run
Type dxdiag
Hit OK