INT 21 - Windows95 - LONG FILENAME - TERMINATE SUBST AX = 71AAh BH = 01h BL = drive number (01h = A:, etc.) Return: CF clear if successful CF set on error AX = error code (see #01680) 7100h if function not supported Note: the specified drive number may not be 00h (default), and presumably not the current drive either SeeAlso: AX=71AAh/BH=00h,AX=71AAh/BH=02h,INT 2F/AX=1000h,#01643