Embed a word document inside IFrame/Aspx page

Question

Hi Everyone, I need a help. I want to display a word document inside an aspx page. Currently when i say response.contenttype=application/msword, its asking me to save/open file. But i want to embed this document into web page(say iframe). I dont want to use Interop Lib. And also i should be able to view both doc and docx format. Any pointers? Thanks in advance.