WPF Application Display PDF Document

Is there a Way I can display PDF Document within a WPF app? I was able to do on a Windows XP Box with Acrobat 8.x installed. But开发者_运维技巧 on windows 7 with Acrobat 9.x installed, those ActiveX controls are not available anymore... Is there an alternate control I should be looking for?

http://hugeonion.com/2009/04/06/displaying-a-pdf-file-within-a-wpf-application/