Int 21/AX=4402h

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PC/TCP IPCUST.SYS - RESET CONFIGURATION DATA READ POINTER

AX = 4402h
BX = file handle referencing device "$IPCUST"
CX, DS:DX ignored

Return:
CF clear if successful AX destroyed CF set on error AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)

Notes: There are a total of 378h bytes of configuration data for IPCUST.SYS version 2.05. If less than the entire data is read or written, the next read/write continues where the previous one ended; this call and AX=4403h both reset the location at which the next operation starts to zero. V2.1+ uses a new configuration method, but allows the installation of IPCUST.SYS for backward compatibility with other software which must read the PC/TCP configuration

See Also: AH=3Fh"IPCUST" - AH=40h"IPCUST" - AX=4403h"IPCUST"

Category: Network - Int 21h - P

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