Microsoft Knowledge Base

The information in this article applies to:

• The Microsoft Network versions 1.2, 1.3

SYMPTOMS

If you select a primary or backup access number from a country other than the country selected in Dialing properties, you may receive the following error message when you attempt to connect to MSN, The Microsoft Network:

   Unable to set the Internet phone number because of the following
   error: Dial-Up Networking error 87 occurred.

CAUSE

This error may occur after you install Microsoft Internet Explorer version 3.0 or other new Internet programs that use later versions of the Inet16.dll and Inetcfg16.dll files than those included with MSN 1.2 and 1.3.

RESOLUTION

Click OK in the error message box and continue. This error has no effect on the connection.

To prevent this message, change the country in Dialing Properties and select an access number using these steps:

1. On the MSN Sign In screen, click Settings.

2. Click Dialing Properties.

3. In the I Am In box, click the country in which you are located, and then click OK.

4. Click Access Numbers.

5. Click Change, and then click the access number for your location.

MORE INFORMATION

Although you do not receive this error message if you use version 4.40.516 of the Inetcfg.dll and Inet16.dll files included with MSN 1.2 and 1.3, these older files do not work with Internet Explorer 3.0 or the Internet Connection Wizard.