XML HTTP Extended Request interfaces

2018-05-31

XML HTTP Extended Request supports the following interfaces, which are grouped according to the inheritance hierarchy.

In this section

Topic	Description
[IXMLHTTPRequest2](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest2)	Provides the methods and properties needed to configure and send HTTP requests and use callbacks to receive notifications during HTTP response processing. [!Note] This interface is supported on Windows Phone 8.1.
[IXMLHTTPRequest2Callback](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest2callback)	Defines callbacks that notify an application with an outstanding [IXMLHTTPRequest2](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest2) request of events that affect HTTP request and response processing. [!Note] This interface is supported on Windows Phone 8.1.
[IXMLHTTPRequest3](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest3)	Provides the methods and properties needed to configure and send HTTP requests and use callbacks to receive notifications during HTTP response processing. Derives from the [IXMLHTTPRequest2](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest2) interface. [!Note] This interface is supported on Windows Phone 8.1.
[IXMLHTTPRequest3Callback](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest3callback)	Defines callbacks that notify an application with an outstanding [IXMLHTTPRequest3](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest3) request of events that affect HTTP request and response processing. Derives from the [IXMLHTTPRequest2Callback](/previous-versions/windows/desktop/api/msxml6/nn-msxml6-ixmlhttprequest2callback) interface. [!Note] This interface is supported on Windows Phone 8.1.