Microsoft KB Archive/258050

= XCCC: Access Denied When Connecting to Exchange 2000 Conferencing Server =

Article ID: 258050

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Exchange 2000 Conferencing Server

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This article was previously published under Q258050



SYMPTOMS
Conference participants are not able to connect and communicate correctly with the Exchange 2000 Conferencing service. Participants that attempt to connect to the conferencing server, may receive the following error message Web page:

You are not authorized to view this page

You might not have permissions to view this directory or page using the credentials supplied.

HTTP Error 403 - Forbidden

If participants attempt to browse a list of all published conferences, such as http://server/conferencing/list.asp, participants may receive the following error message Web page:

The page cannot be found

The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.

HTTP 404 - File not found



CAUSE
This behavior occurs because the Exchfilt.dll Internet Server API (ISAPI) filter is not loaded or is not working properly. To verify this, you can manually place the participants language directory into the URL. For example:

http://server/conferencing/usa/list.asp

If the participant receives the List.asp, the Exchfilt.dll file is not working properly.



RESOLUTION
To resolve this behavior, verify the following settings:

Internet Services Manager

 * Default Web Site
 * Properties
 * ISAPI Filters

Filter Name: Microsoft Exchange Conferencing Web

Status: Loaded

Executable: X:\Program Files\Microsoft Exchange Conferencing Server\exchfilt.dll

Priority: Low



MORE INFORMATION
The Exchange 2000 Conferencing service writes multiple configuration entries and attributes into the Internet Information Service (IIS) Metabase. Below is a list of all Conferencing Metabase entries:

W3SVC/1/ROOT/CONFERENCINGPRIVATE
The file Exchfilt.dll responds to conferencing client join requests and directs them to their appropriate language directory.

Additional query words: exch2kp2w exchfilt dll

Keywords: kberrmsg kbprb KB258050

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