INT 21 - Windows95 - LONG FILENAME - QUERY SUBST AX = 71AAh BH = 02h BL = drive number (01h = A:, etc.) DS:DX -> buffer for ASCIZ pathname associated with drive letter Return: CF clear if successful DS:DX buffer filled CF set on error AX = error code (see #01680) 7100h if function not supported Note: the specified drive number may not be 00h (default drive) SeeAlso: AX=71AAh/BH=00h,AX=71AAh/BH=01h,INT 2F/AX=1000h,#01643