INT 21,41 - Delete File

AH = 41h

DS:DX = pointer to an ASCIIZ filename

on return:

AX = error code if CF set (see DOS ERROR CODES)

- marks first byte of file directory entry with E5 to indicate

the file has been deleted. The rest of the directory entry

stays intact until reused. ~FAT~ pointers are returned to DOS

- documented as not accepting wildcards in filename but actually

does in several DOS versions