QWebView 4.8 on windows

I am using Qt 4.8. I successfully compiled application using QWebView on linux. After this I converted .pro file to Visual Studio 2010 project using qmake and compiled on windows. When I run on windows nothing works – the QWebView is always blank. Does it work on windows? May be I didn’t copy required dll files into application’s folder? I compiled windows application same way before and it worked well but it didn’t use webkit.