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Format of TCPDRV.DOS request block

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Offset Size Description

00h

BYTE

(call) function number
00h = initialize ???
06h = get ???
07h = get ???

01h

BYTE

(call) 00h
(ret) error code if error, unchanged if successful

02h

WORD

signature 4354h ('CT')

---function 00h---

04h

DWORD

(call) pointer to ??? FAR function
function is called with ES:BX device driver request used to invoke this function

08h

4 BYTEs

???

0Ch

DWORD

(call) pointer to ??? record, WORD at offset 22h is read

10h

DWORD

(ret) ??? buffer if 0000h:0000h on call

---function 06h---

04h

4 BYTEs

???

08h

DWORD

(ret) pointer to ???

---function 07h---

04h

DWORD

(ret) pointer to ??? record