Microsoft KB Archive/250210

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Unable to Connect to an Internet User by Using VDOPhone with Internet Connection Sharing

Article ID: 250210

Article Last Modified on 1/27/2007


  • Microsoft Windows Millennium Edition

This article was previously published under Q250210

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry


When you try to use the VDOnet VDOPhone program to connect to an Internet Connection Sharing (ICS) client computer that is also running VDOPhone, you may be unable to establish a connection.


This issue can occur if the VDOPhone program is not installed on the ICS host computer.


WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this issue, install the VDOnet VDOPhone program on the ICS host computer.

To work around this issue if VDOPhone is not installed on the ICS host computer, use Registry Editor to view the following registry key:


Change the value data key of the VDOPhone registry entry to the Internet Protocol (IP) address that is provided to the ICS client computer by the ICS host computer, and then restart your computer.


The VDOnet VDOPhone program is a video-conference program. VDOPhone delivers full color, two-way video and audio communications without the traditional video conferencing hardware requirements.

VDOPhone has the ability to connect users over networks that use Transmission Control Protocol/Internet Protocol (TCP/IP) and over normal analog phone lines by using the ITU H.324 standard for low bit-rate video conferencing. For additional information about VDOPhone, click the article number below to view the article in the Microsoft Knowledge Base:

274763 Cannot Receive or Accept Calls with VDOPhone

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kb3rdparty kbprb KB250210