INT 21 O - DR DOS 6.0 - SET FILE OWNER AX = 4307h CX = ??? (owner identification number?) DS:DX -> ASCIZA NUL-terminated ASCII string. The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h. Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. filename Return: CF clear if successful CF set on error AX = error code (see #01680 at AH=59h/BX=0000h) Note: no longer supported by Novell DOS 7 / OpenDOS SeeAlso: AX=4306h