Based on the contacts I have received, it appears that there are a number of companies who have microphone array, noise reduction, and acoustic echo cancellation products, who are concerned (with good reason) about how their carefully constructed algorithms can participate in Vista. It seems to me that most of these companies do not really care very much about the infrastructure; they want to be able to supply their own algorithms, based on their own research by their teams of big-brained algorithm specialists. It has occurred to me that it might not be too difficult for Microsoft to provide a plugin interface to the existing AEC GFX module, thus allowing these companies to integrate their own algorithmic libraries into a known-good GFX infrastructure, without having to reinvent the user interface aspects or the installation and system integration headaches. I'm wondering if that approach has been considered, or if the answer is just "rewrite the whole GFX". -- Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc.