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Format of DOSMGR patch table

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Offset Size Description

00h

2 BYTEs

DOS version (major, minor)

02h

WORD

offset in DOS data segment of "SAVEDS"

04h

WORD

offset in DOS data segment of "SAVEBX"

06h

WORD

offset in DOS data segment of InDOS flag

08h

WORD

offset in DOS data segment of User ID word

0Ah

WORD

offset in DOS data segment of "CritPatch" table to enable critical section calls (see INT 2A/AH=80h)

0Ch

WORD

(DOS 5+ only) offset in DOS data segment of "UMB_HEAD", containing segment of last MCB in conventional memory