Some MS-DOS API Functions Not Supported With Windows NT

This article was previously published under Q102058
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The following MS-DOS application program interface (API) functions arenot supported with Windows NT:
 - INT21H/44h IOCTL subfunction 05,0dh - INT 21H function 52h (undocumented) - offset 12H (pointer to DISK   buffer information) is NULL in Windows NT DOS (for this reason   INTERLNK.EXE from MS-DOS 6 doesn't work in Windows NT). - INT21H/53h SetDPB - INT13H all subfunctions for hard disks - INT13H following subfunctions for floppy disk drives:      09-14h, 19h-1ah - INT15H:      0-3,0fh,21h,23h,80h-82h,84h,85h,89h,90h,91h,c1h,c2h,c3h,c4h - INT18H (basic) - INT2F following subfunctions      AX=      0101h,4b01h,4b02h,4b03h,4b04h,1502,1503,1504,1505,1508,150e,150f - INT33 (mouse)      Ax=10h, Ax=27h-40h. - INT67 (EMM) AH=DEh (all subfunctions, VCPI) - task switcher APIs

Article ID: 102058 - Last Review: 10/26/2013 02:54:00 - Revision: 4.0

  • Microsoft Windows NT Workstation 3.1
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