Int 21 Fn 5A  - Dos 3.0+ - Create Temporary File                           [D]

   AH = 5Ah
   CX = file attribute (see #1107 at AX=4301h)
   DS:DX -> ASCIZ path ending with a '\' + 13 zero bytes to receive the
       generated filename

Return: CF clear if successful
       AX = file handle opened for read/write in compatibility mode
       DS:DX pathname extended with generated name for temporary file
   CF set on error
       AX = error code (03h,04h,05h) (see #1366)
Desc:  creates a file with a unique name which must be explicitly deleted

Notes: under the FlashTek X-32 DOS extender, the path pointer is in DS:EDX
   MS-DOS 3.0-4.0 and DR DOS 3.4-5.0 generate the filename as a sequence
     of hex digits based on the current date and time; MS-DOS 6+,
     DR DOS 6, and Novell DOS 7 use letters A-P in place of hex digits
   MS-DOS 5.0 and DR DOS 3.41/5.0 will insert a missing trailing backslash
     before appending the generated filename, but due to this, an empty
     string results in a file in the root directory
BUGS:  COMPAQ DOS 3.31 hangs if the pathname is at XXXXh:0000h; it apparently
     wraps around to the end of the segment
   MS-DOS 5.00 revisions A and B and PC-DOS 5.00 revision A reportedly
     hang the system if the specified path is the root directory and the
     root directory is full (no free directory entries)
   Mark Incley <mincley@krisalis.demon.co.uk> reports that this function
     hangs in MS-DOS 6.2x if the name includes two consecutive path
     separators (e.g. C:\\ )

See Also: AH=3Ch,AH=5Bh