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Q131459: INFO: MS-DOS-Based RPC Application Cannot Use TCP/IP

Article: Q131459
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.11
Operating System(s): 
Keyword(s): kbnetwork kbAPI kbRPC kbSDKPlatform kbLanMan kbOSWin311 kbGrpDSNet
Last Modified: 06-NOV-1999

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The information in this article applies to:

- Microsoft Windows Software Development Kit (SDK) 3.11 
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SUMMARY
=======

An MS-DOS-based (16-bit) RPC application cannot use TCP/IP as the protocol
sequence when running under Windows for Workgroup 3.11 with Microsoft's
TCP/IP-32 driver or Windows NT's WOW layer.

MORE INFORMATION
================

MS-DOS-based RPC applications that use TCP/IP as the protocol sequence to
communicate are designed to run only over Microsoft's real mode TCP/IP driver
for Microsoft LAN Manager client software for MS-DOS or any other compatible
real-mode TCP/IP driver implementation.

Windows for Workgroup's TCP/IP-32 protocol driver and Windows NT's WOW layer do
not provide the same real-mode interface for TCP/IP as provided by the Microsoft
LAN Manager TCP/IP driver.

When an MS-DOS-based RPC application tries to use TCP/IP as the protocol sequence
under Windows for Workgroups with Microsoft's TCP/IP-32 driver or Windows NT's
WOW layer, RPC run time report exception 27(0x1b).

Additional query words:

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Keywords          : kbnetwork kbAPI kbRPC kbSDKPlatform kbLanMan kbOSWin311 kbGrpDSNet 
Technology        : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK311
Version           : WINDOWS:3.11
Issue type        : kbinfo

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