Do you accept the terms of the licensing agreement?
NO!
1. INSTALLATION AND USE RIGHTS. You may install and use any number of copies of the software on your devices running validly licensed copies of Internet Explorer.
WHAT???
So if I run the example in Firefox, my default browser, then I am breaking the license agreement. This is unacceptable. I clicked no, so I will not be looking at the WPF FlowDocument sample which I downloaded. (FlowDocumentSamp.exe)
Er, that does not say you have to use IE to view the sample, merely that the system you are on must have a validly licensed copy of IE.