Function 39h (57)        Create Directory (MKDIR)

Create a subdirectory.

On entry:      AH         39h
DS:DX      Pointer to directory name to create (ASCIIZ
string)

Returns:       AX         Error code, if CF set

Error codes:   3          Path not found
5          Access denied, or pathname already exists.

Call Function 59h for extended error code information
for DOS 3.0 and above.

Network:       Requires Create access rights

                                                                          

Function 39h (MKDIR) creates a subdirectory whose path is specified in
the ASCIIZ string at address DS:DX; the string length is limited to 64
characters. If the function is unable to create the directory, it sets
the Carry Flag and returns an error code in AX.

Notes:         The directory name may include a drive letter.

If any of the parent directories in the path do not
exist, the directory is not created.

See also: 3Ah
See also: 3Bh
See also: 47h
See also: 59h

39h (57) Create Directory (MKDIR)