DOCUMENT:Q171456  17-JUL-1997  [vbwin]
TITLE   :PRB: Run-time error -2147023071 (80070721) using WithEvents
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:5.0
OPER/SYS:WINDOWS
KEYWORDS:kberrmsg vb5all

======================================================================
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The information in this article applies to:

 - Microsoft Visual Basic Control Creation, Learning, Professional, and
   Enterprise Editions for Windows, version 5.0
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SYMPTOMS
========

When using an ActiveX component that defines events, you may receive the
following error when this component is accessed via DCOM.

   "Run-time error -2147023071 (80070721)
   Automation Error"

This error does not occur if the ActiveX component is used locally or if
the client does not instantiate the remote object using the WithEvents
statement.

CAUSE
=====

The cause of this behavior is the configuration of the DCOM Server's
security options.

RESOLUTION
==========

To fix this problem, the security options for the Microsoft Windows NT DCOM
server must be set appropriately. To make these changes, follow the steps
below:

NOTE: This procedure requires administrative access to the Microsoft
Windows NT system that is active as the DCOM server.

1. Install the Server and the Client components as per the installation
   instructions. This will register the components on the appropriate
   systems.

2. On the system that is to act as the DCOM server, click Run from the
   Start menu. In the Open field, type "DCOMCNFG.EXE" (without quotes).
   Click OK.

3. Select the ProgID or GUID that represents the component you wish to
   configure. Click Properties.

4. In the Identity section, select 'The Interactive User' option.

5. Change the other security options to their desired settings.

REFERENCES
==========

For additional information, please see the following article in the
Microsoft Knowledge Base:

   ARTICLE-ID: Q161837
   TITLE     : HOWTO: Create a DCOM Client/Server Application
======================================================================
Keywords            : kberrmsg vb5all
Version             : 5.0
Platform            : WINDOWS
Issue type          : kbprb

=============================================================================

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