DOCUMENT:Q202075  16-SEP-1999  [iis]
TITLE   :Multiple Script Map Entries Created in IIS 4.0
PRODUCT :Internet Information Server
PROD/VER:winnt:4.0
OPER/SYS:
KEYWORDS:kbInternet

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The information in this article applies to:

 - Microsoft Internet Information Server 4.0 
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SYMPTOMS
========

Each time an Internet Information Server (IIS) computer is restarted, duplicate
mapping for some applications are added repeatedly under the Application
Mappings in IIS 4.0.

To view these mappings, open the Microsoft Management Console (MMC) and click the
Computer icon under the Internet Information Server category. Open the Property
sheet for this item and choose to Edit the Master Properties of the WWW Service.
Click the Home Directory tab and click the Configuration button beneath the
Application Settings. You will then see the Application Mappings displayed. Each
extension only needs to be listed one time.

CAUSE
=====

This problem is caused by Script Mappings that exist in the registry. IIS
version 3.0 uses the registry to control any application mappings. IIS 4.0
stores this information in the MetaBase. When a server running IIS 4.0 is
started, it converts the ScriptMap registry key into an Application Mapping, but
this registry entry is not removed.

RESOLUTION
==========

To resolve this problem, remove the Script Map entries from the registry.

WARNING: Using Registry Editor incorrectly can cause serious problems that may
require you to reinstall your operating system. Microsoft cannot guarantee that
problems resulting from the incorrect use of Registry Editor can be solved. Use
Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And
Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit it.

1. Open the Default Property Sheet for your computer running Internet
   Information Server and view the Application Mappings. Remove all extra
   (duplicate) entries for any extensions until there is only one mapping listed
   for each extension.

2. Start Registry Editor.

3. Locate the following key:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W3SVC\Parameters\Script
   Map.

4. Highlight any values that are listed for this key EXCEPT for Default and
   choose Edit and Delete.

5. Restart the computer.

These steps will remove any mappings from the registry and prevent the mappings
from being added repeatedly to the MetaBase.

Additional query words:

======================================================================
Keywords          : kbInternet 
Technology        : kbiisSearch kbiis400
Version           : winnt:4.0
Hardware          : x86
Issue type        : kbprb

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