Ensures that the file Stream is positioned beyond the header ready to start reading packets, and the original provided Stream may be closed/disposed after this call. (But do not alter the original Stream or its position because the same file handle may be retained.)
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2