System.Windows.Documents.Serialization.SerializerProvider default constructor fails creating System.Uri

[ryalanms]

System.Windows.Documents.Serialization.SerializerProvider creation always fails while creating System.Uri.

SerializerProvider sp = new SerializerProvider();

at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
at System.Uri..ctor(String uriString)
at System.Windows.Xps.Serialization.XpsSerializerFactory.get_ManufacturerWebsite()
at System.Windows.Documents.Serialization.SerializerDescriptor.CreateFromFactoryInstance(ISerializerFactory factoryInstance)
at System.Windows.Documents.Serialization.SerializerProvider..ctor()
at TestSerializerProvider.MainWindow..ctor() in D:\PluginSerializer\TestSerializerProvider\MainWindow.xaml.cs:line 30