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Home > Forums > Programmers > Languages > Assembly Forum

Unsupported Interrupt

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Alt255 (Programmer)

29 Feb 00 12:43

I'm using Interrupt 21h, function 44h, subfunction 0Eh to map the logical drives on a system. It works fine after booting to DOS but its an old IOCTL call and either Windows doesn't support it anymore or it hooks the interrupt for its own use (AX always contains an error code).
Does anyone know of an interrupt that will get the logical drives under Windows?
Thanks for any reply.

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