Run quirks mode in one frame and standards mode in another?

Question

I have an old application that uses frames (not iframes) was was written back in the IE6 days so it runs in quirks mode.

Is it possible (Using IE 7 or 8) to have one

Answer 1

If you can modify the code (or HTML) of the application, you can add a meta tag (just below head), so it forces IE to render it in Quirks mode, like this: