The TagPrefixCollection constructor is not intended to be used directly from your code. It is called by the ASP.NET configuration system. The Controls property of the PagesSection class always contains an instance of the TagPrefixCollection type. Use this instance, rather than creating your own.
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)