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Format of DOS parameter list

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Offset Size Description

00h

WORD

AX

02h

WORD

BX

04h

WORD

CX

06h

WORD

DX

08h

WORD

SI

0Ah

WORD

DI

0Ch

WORD

DS

0Eh

WORD

ES

10h

WORD

reserved (0)

12h

WORD

computer ID (0 = current system)

14h

WORD

process ID (PSP segment on specified computer)

Note:

Under Windows Enhanced mode, the computer ID is normally the virtual machine ID (see INT 2F/AX=1683h), though this can reportedly be changed by setting UniqueDOSPSP= in SYSTEM.INI.