DOS / Functions / DD


                 INT 21 - Novell NetWare 4.0 - SET ERROR MODE

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	DDh						Previous Mode		AX
BX									BX
CX									CX
DX			Error Mode						DX
ES:DI									CF

Error mode:     00h Display critical I/O errors
                01h Extended errors for all I/O in AL
                02h Extended errors for critical I/O in AL