Windows 98 QOS Notes

The following list describes Windows 2000 QOS features not available in Microsoft® Windows® 98:

Error Code Granularity

Windows 98 does not support the fine-grained error codes that can be provided in ExtendedStatus1 and ExtendedStatus2.

Kernel Traffic Control

Kernel traffic control is not available in Windows 98. Therefore, observe the following restrictions when using Windows 98:

Applications should not pass down or retrieve traffic objects, including shaping rage or shape/discard objects.

The SERVICE_NO_TRAFFIC_CONTROL control flag is not available.

ADSPEC parameters specific to traffic control are not set.

Registry Parameters

Windows 98 does not support the following registry parameters:

EnablePriorityBoost

EnableRSVP

EnableSPSetIPTOS

RSVP_RESERVE_INFO

Windows 98 does not support the passing of RSVP_POLICY_INFO objects in the RSVP_RESERVE_INFO structure.

Policy Objects

Windows 98 does not support the submission or retrieval of application specific–policy objects.

Service Types

The SERVICE_NO_QOS_SIGNALING control flag is not available.

SIO_CHK_QOS

Windows 98 does not support SIO_CHK_QOS, and as a result, Windows 98 does not support queries for ALLOWED_TO_SEND_DATA, ABLE_TO_RECV_RSVP, or LINE_RATE.

SIO_SET_QOS

Asynchronous calls to WSAIoctl(SIO_SET_QOS) are not supported in Windows 98.

TOS

The RSVP service provider does not set Type of Service (TOS) bits in the IP header. TOS has been obviated by DSCP.