Hello - and greetings from a newbie in world of Audio WDM. As part of the process of learning the subject, I wanted to build the MSVAD samples and install them on a Windows 2000 test box. Everything in the WDK documentation indicated that this should be possible. However, the build script and makefile for the audio samples, as they come out-of-the-box, let me build and install only for a Windows XP (and higher) target. Is it true that using the latest WDK (as opposed to the older DDK), the MSVAD samples can no longer be built for W2K as a target OS? If so, does anyone know why? (since if this is true it certainly contradicts the current WDK documentation) Thanks is advance, Don