Why do I have to additionally install DirectX at Windows 2000 Professional?
 
  The DirectX installation does not take place during the standard installation of Windows 2000 Professional. As IQ EasyMeasure® requires Direct Draw™ functions, which are part of DirectX, you have to install DirectX separately.
Please always install the current DirectX version at Windows 2000 Professional or Windows XP Professional. The current IQ EasyMeasure® product-CD contains the latest DirectX version.