SAMPLE: VB5DCOM.EXE: Using Callbacks and WithEvents with DCOM (175510)
The information in this article applies to:
- Microsoft Visual Basic Enterprise Edition for Windows 5.0
- Microsoft Visual Basic Enterprise Edition for Windows 6.0
This article was previously published under Q175510 SUMMARY VB5DCOM.EXE is a Visual Basic sample application that
demonstrates how to use WithEvents and CallBacks remotely via DCOM (Distributed
Component Object Model).
NOTE: Building DCOM Application with
Microsoft Visual Basic is only enabled in the Enterprise Editions of Visual
Basic 5.0 and 6.0. MORE INFORMATION If you are using Visual Basic 6.0, see the following
Microsoft Knowledge Base articles:
266717 HOWTO: Create a DCOM Client/Server Application by Using Visual Basic
267836 HOWTO: Create a DCOM Client/Server with Events by Using Visual Basic
For additional help on how to set security and how
to troubleshoot DCOM issues, see the following articles in the Microsoft
Knowledge Base:
268550 HOWTO: Use Dcomcnfg for a Visual Basic DCOM Client/Server Application
269330 HOWTO: Troubleshoot DCOM for Visual Basic Client/Server Applications
VB5DCOM.EXE also addresses all of the security
settings that are required to make DCOM function correctly with Visual Basic
using DCOM Config. It even demonstrates how to check a client machines registry
to confirm that DCOM is installed on Windows 95 platforms and enabled on
Windows NT, Windows 2000, and Windows 98. If DCOM is not present on the Windows
95 machine, then it presents the user with the opportunity to immediately
download the necessary DCOM files from the Microsoft Web
site. The
following file is available for download from the Microsoft Download
Center: For
additional information about how to download Microsoft Support files, click the
following article number to view the article in the Microsoft Knowledge Base: 119591 How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most
current virus-detection software that was available on the date that the file
was posted. The file is stored on security-enhanced servers that help to
prevent any unauthorized changes to the file.
Place the file Vb5dcom.exe in a root directory
of a drive that has at least 150KB of available space. This a self-extracting
executable so it will create the proper folders for you and place all the files
in their respective locations. Execute the file Vb5dcom.exe. You will now have
a DCOMDemo folder with separate Client and Server folders. Open the
server project \DCOMDemo\Server\DCOMDemoServer.vbp. In the project's
properties, make sure that the "remote server files" option on the component
tab is checked and make an executable of the server. The server will now be
registered on your machine and you will have a .vbr file containing the
registry entries for the server. Close the server project. Open the
client project \DCOMDemo\Client\DCOMDemoClient.vbp. Set a reference to the
DCOMDemoServer in the projects references. Run the project locally to check for
problems before distributing to other machines for testing remotely.
See the included file \DCOMDemo\Permissions.txt if you encounter problems (such
as Error 70 - Permission denied). REFERENCES For more information about distributing DCOM applications,
please see the following article in the Microsoft Knowledge Base: 161837 HOWTO: Create a DCOM Client/Server Application
266717 HOWTO: Create a DCOM Client/Server Application by Using Visual Basic
267836 HOWTO: Create a DCOM Client/Server with Events by Using Visual Basic
268550 HOWTO: Use Dcomcnfg for a Visual Basic DCOM Client/Server Application
269330 HOWTO: Troubleshoot DCOM for Visual Basic Client/Server Applications
| Modification Type: | Minor | Last Reviewed: | 8/9/2004 |
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| Keywords: | kbdownload kbDCOM kbfile kbinfo kbSample KB175510 kbAudDeveloper |
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