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posted by Japheth Homepage, Germany (South), 02.06.2011, 05:42

> Ah, so shouldn't 2F.1680 via 31.0300 be preferred then?

Yes, definitely!

> Aside from preference, that means it should always be fine to call 2F.1680
> via 31.0300 if direct 2F.1680 isn't supported in protected mode?

I just tested the variants in both XP and 9x: Int 2Fh, 1680h via int 31h, 0300h works well on both platforms. So this is indeed the most generic approach.

---
MS-DOS forever!

 

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