COM Internet Services Do Not Work Without ProxyOverride Entry

After you install Microsoft Internet Explorer version 5 on a computer running Windows NT version 4.0, you may receive the following error message from COM Internet Services:

This behavior can occur if you clear the Bypass proxy server for local intranet access check box in Internet Explorer options.

In Internet Explorer 4, clearing the Bypass proxy server for local internet access check box sets the following registry value to null: In Internet Explorer 5, the ProxyOverride value is deleted. The Remote Procedure Call (RPC) protocol flags an error condition when it cannot find the ProxyOverride key in the registry.

To resolve this problem, obtain the latest service pack for Microsoft Windows NT 4.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows NT 4.0 Service Pack 6a.