This article looks at the question in reverse:
Open Windows Explorer and go to Tools | Folder Options | File Types.
Scroll down to the file type in question and select it.
Click Edit or Advanced, depending on your Windows version.
Uncheck the box for "Confirm open after download".

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Frank Saunders, MS-MVP OE/WM
>I direct my page to a doc file, and of course i asks whether to save or
>open
> the file. Is it possible to by pass this confirmation dialog and open the
> doc
> file in the browser?