MIDL 1.0 and MIDL 2.0 Full Pointers Do Not Interoperate

Last reviewed: September 29, 1995
Article ID: Q115830

The information in this article applies to:

Microsoft Win32 Software Development Kit (SDK) for Windows NT, version 3.5

Microsoft Remote Procedure Call (RPC), version 1.0, has minimal support for full pointers, so the version of the MIDL compiler with Microsoft RPC version 1.0 (MIDL 1.0) treats full pointers (specified with the ptr attribute) as unique pointers (specified with the unique attribute).

The MIDL compiler with Microsoft RPC, version 2.0 (MIDL 2.0), supports full pointers. Because of the way Microsoft RPC, version 1.0, handles the on- wire representation of pointers, applications compiled using MIDL 2.0 full pointers cannot operate interactively with applications compiled using MIDL 1.0 full pointers.

The workaround is to recompile the MIDL 2.0 application to use unique pointers.

Additional reference words: 3.50
KBCategory: kbnetwork
KBSubcategory: NtwkRpc

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: September 29, 1995
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.