Microsoft Corp yesterday proposed its own Channel Definition Format (CDF) set of push software technologies to the World Wide Web Consortium (W3C). Those are the standards to be used in its forthcoming Internet Explorer release 4.0, and the majority of the participants in the nascent push – or webcasting – market stepped forward to say it was a good thing, as they know they had to, given Redmond’s proven track record in dominating the desktop market. The W3C emphasized that it had not endorsed the format in any way, merely acknowledging its receipt. The consortium could not comment on whether it was the first such push proposal it had received. Incidentally, Marimba Inc announced yesterday that it had joined the W3C, but the consortium said it happened a while ago, its just that announcing the things takes time. The principal enthusiasts for CDF, about which details were scarce apart from it involves HTML, Dynamic HTML and ActiveX, were PointCast Inc, America Online Inc and BackWeb Inc. All agreed to support it with their internet broadcasts.