Seeking font which is identical on Windows & browser

Sorry, but I know nothing at all about fonts, so I hop开发者_如何学Pythone that this doesn't sound too dumb.

I am coding a Windows program which allows users to design HTML pages. The web page as seen in the browser should be identical to what was designed in the Windows program (WYSIWYG).

All users will be running Windows and using MSIE (initially; some may use other browsers or even o/s later). I am not sure that users will accept installing new fonts (unless there is no other way to achieve WYSIWYG).

What should I do?

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Take a look @ web development fonts.