Making a part of a label bold

Hey guys,

I have a WPF application and I need to present some text on the window. I need some of the text to be bold, some underlined, some both and some regular - the end used determines that through a xml file. From the research I conducted, other than using several different labels or to manually implement the label control this is not possible. Is there another control that I can use for this purpose? Any kind of WPF control would be good.

Thanks!