The following document is a short overview of the Microsoft QoS vision:
http://www.microsoft.com/windows2000/library/howitworks/communications/trafficmgmt/qosmech.asp

The following document is a short description of the QoS components built into Windows2000 in support of this vision:
http://www.microsoft.com/windows2000/library/howitworks/communications/trafficmgmt/qoscomp.asp

The following document is an in-depth discussion of the above topics, including pointers to references and standards documents:
http://www.microsoft.com/windows2000/library/howitworks/communications/trafficmgmt/qosover.asp

The following is a description of open standards that should be supported by network equipment in order to fully leverage Win2K's QoS:
http://www.microsoft.com/windows2000/library/howitworks/communications/trafficmgmt/qosvendor.asp