Project: Community Clips
Community Clips is a portal for viewing, sharing, and discussing informal "how-to" videos (screencasts) on Microsoft Office products. It also includes a client application for easy recording of screen views and voice.... Continues here.. http://www.officelabs.com/projects/communityclips/Pages/Default.aspx. Its a 12 MB MSI package.
I think we can use this as a replacement for windows media encoder package which servers the same purpose. correct me if im wrong, as i didnt try using this.