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Q164086: Err Msg: http/1.0 500 server error (-2146893048) with Proxy

Article: Q164086
Product(s): Internet Information Server
Version(s): WINNT: 1.0
Operating System(s): 
Keyword(s): 
Last Modified: 06-MAY-1999

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The information in this article applies to:

- Microsoft Internet Information Server 1.0 
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SYMPTOMS
========

When you try to view a secure web site from your Microsoft Internet Explorer
version 3.01 and earlier, you may get the following error message:

  http/1.0 500 server error (-2146893048)

CAUSE
=====

A problem exists with Windows NT Challenge/Response authentication of the Web
Proxy clients.


WORKAROUND
==========

Use one of the following methods:

Methods One
-----------

1. Make sure all clients are using Internet Explorer version 3.01 or later.

2. Install Service Pack 2 for Microsoft Windows NT version 4.0 on the proxy
  server.

3. Install the Winsock Proxy client program on the client computers.

4. In the Internet Explorer Proxy settings, type the name of the proxy server
  for all protocols EXCEPT Secure. This will force the browser to use the
  Winsock Proxy service instead of the Web Proxy service when you try to
  connect to a SSL (secure) page.

  All other browser requests will use the Web Proxy service and still take
  advantage of caching. This method will allow the use of Windows NT Challenge
  for all protocols because the Winsock Proxy has its own Windows NT Challenge
  authentication built-in.

Method Two
----------

Disable Windows NT Challenge/Response and enable Basic Authentication.

Method Three
------------

Install the Winsock Proxy Client and disable the Proxy connection settings on the
Internet Explorer clients. All clients will use the Winsock Proxy service only.

MORE INFORMATION
================

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

  Q162945 : Error Message: HTTP/1.0 500 Server Error (-2146893048)

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Keywords          :  
Technology        : kbiisSearch kbiis100
Version           : WINNT: 1.0
Issue type        : kbprb

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