This operation will not block. The returned Task<TResult> object will complete after all of the stream that represents content has been read.
Once the operation completes, the Result property on the returned task object contains the stream that that represents the HTTP content. The returned stream can then be used to read the content using various stream APIs.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)