The DirectShow (WDM) driver supports de-interlacing in the driver. To enable this feature, a registry key has to be created. The driver uses the Selective Blending method for de-interlacing. A description of vaious de-interlacing methods can be found here.

Example:
Please note, that the deinterlacing paramter has to be set for each application individually. There is no global setting available. The parameter is set in the WnvAvs directory of the registry. There you need to create manually a subdirectory with the name of the executable of your application. In this example it is WnvDCap.exe.