I am trying to add the DWF Viewer to a WinForms project in Visual Studio 2010. As my machine is x64bit, I've changed the project properties under compile/advanced comp.../Target CPU to x86bit. I can add the control just fine, but as soon as I try to build Visual Studio crashes. I've tried targeting .Net Framework 3.5, but had the same issue. Design Review works fine on my computer, so I'm thinking that this should work.