http://msdn.microsoft.com/en-us/library/aa970060.aspx
http://msdn.microsoft.com/en-us/library/ms752346.aspx
Here are the few steps that you should follow,
1. Create an WPF Browser application.
2. Add MIME type to the IIS before publishing. Details can be found in this page
http://msdn.microsoft.com/en-us/library/ms752346.aspx
3. Publish XBAP application to IIS and set the security level to full trust and create a certificate for Internet explorer. Details can be found in this page,
http://blogs.microsoft.co.il/blogs/maxim/archive/2008/03/05/wpf-xbap-as-full-trust-application.aspx
4. After this verify whether you can see it IE.
5. Once these steps are completed try adding <Iframe> inside you aspx page and set the src attribute to the iis xbap path
<iframe src="http://xxxxx/XBAPinASP/XBAPinASP.xbap" height="100%" width="100%"></iframe>
Yes we can do that with the help of XBAP(XAML Browser Application).XAML browser applications (XBAPs) combines features of both Web applications and rich-client applications. Have a look at this site for more information.
http://msdn.microsoft.com/en-us/library/aa970060.aspx
