Microsoft KB Archive/250979

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Article ID: 250979

Article Last Modified on 11/21/2006


  • Microsoft Internet Information Services 5.0

This article was previously published under Q250979


The More Information section of this article contains a copy of the Release Notes included with the IIS 5.0 documentation. It is included here so that the topics it covers are searchable in the Microsoft Knowledge Base.

To navigate to the Release Notes in the documentation, open the Getting Started topic, and then click Release Notes.

NOTE: The direct URL for the file containing these Release Notes is located at:

(assuming that the documentation is installed on the local computer).

NOTE: Knowledge Base articles can be viewed in either ASCII-text or HTML format. If you are viewing the ASCII-text version of this article, some formatting may have been lost when it was converted from the original HTML form of readme.htm.

Following are the contents of the Readme file as it shipped with the products listed above. It has not been edited by the Microsoft Developer Support Knowledge Base editing team.

NOTE: To successfully implement the changes that are described in the "Application Server vs. File Server" section, restart the computer.


=== Internet Information Services 5.0
Release Notes ===

Welcome to the release notes for Microsoft Internet Information Services (IIS) 5.0. Please refer to these notes to obtain the most recent information about installation, documentation, and other known issues.

NOTE: You can click links below to navigate within this page.

Known Problems and Limitations


  • "Inherit all security settings" in the Permissions Wizard If you run the Permissions Wizard for a Web site, and choose to inherit all security settings, customers might be denied access to the Web site. To correct this, open the Home Directory property sheet for the Web site and select Read and Scripts only permissions. When prompted, have all virtual directories and files inherit these settings.
  • Requiring 128-Bit Encryption on a 56-Bit Server If you select the Require 128-bit encryption check box on a server that is only capable of 56-bit encryption, users will not be able to access resources for which this requirement is selected. Even though the 128-bit encryption check box is enabled, only 56-bit encryption can be used. To enable users to view these resources, clear the check box.
  • Server Certificate Cannot Be Removed and Reassigned After Upgrade If you cannot remove and reassign your server certificate after an upgrade to Microsoft® Windows 2000®, this is due to changes in the way that IIS 5.0 uses server certificates. To fix this problem, use the Visual Basic script below to change metabase settings and to remove the certificate. You can then use the Web Site Certificate Wizard in IIS to reassign the certificate.

    'Set Machinename to the name of the machine or localhost
    Set PathObj = GetObject("IIS://" & MachineName & "/w3svc")
    PathObj.PutEx 1, "SSLCertHash", ""
    PathObj.PutEx 1, "SSLStoreName", ""

  • Domain Name Restrictions not Functioning Properly If you are using DNS restrictions in IIS 5.0, and some users are experiencing difficulty accessing server resources, you can correct this problem by using the "*" syntax rather than the "" syntax.

Performance and Logging

  • Application Server vs. File Server

    Microsoft Windows 2000 Server and IIS 5.0 are built so that you can get the most from your server. You can run your server as either an application server or a file serve. These two types of servers have different memory needs, and the setting you choose can influence the performance of the server.

    By default, Windows 2000 Server installs as a file server. It is recommended that you configure your server as an application server, if you are using it primarily as a Web server.

    To configure your server as an application server:

    1. Click Start, point to Settings, and then click Network and Dial-up Connections.
    2. Select Local Area Connection, and then open its properties.
    3. Select File and Printer Sharing for Microsoft Networks, and then open its properties.
    4. On the Server Optimization tab, select Maximize data throughput for network applications.
  • Socket Pooling, Performance, and Security Issues

    You might want to disable socket pooling if any of the following are true:

    You are not hosting a large number of sites.


    You have special security concerns.

    Socket pooling will cause IIS 5.0 to listen to all IP addresses, which might present a possible security risk for secure domains with multiple networks. In addition, both bandwidth throttling and performance adjustments will apply to all Web sites configured for the same port, for example port 80. If you intend to use bandwidth throttling or do performance tuning on a per-site basis, you will need to disable socket pooling.

    To disable socket pooling, type the following at the command prompt:

    c:\inetpub\adminscripts\cscript adsutil.vbs set w3svc/disablesocketpooling true

    The command prompt will reply:

    disablesocketpooling : (BOOLEAN) True

  • Stopping Internet Services

    The Reliable Restart feature of the Windows 2000 Service Control Manager will automatically restart Internet services if the Inetinfo.exe process terminates abnormally, or if you use Windows Task Manager or Kill.exe to stop Internet services. If you want to stop Internet services, you must disable Reliable Restart.

    To disable Reliable Restart:

    1. Click Start, point to Settings, click Control Panel, double-click Administrative Tools, and then double-click Computer Management.
    2. Under the System Tools node, click Services.
    3. Open the properties for IIS Admin Service.
    4. On the Recovery tab, select Take No Action in each of the drop-down menus.

    You can also disable Reliable Restart by typing Iisreset.exe /disable at the command line.

  • ASP Buffering and Performance After Upgrade

    In IIS 4.0, the Buffer property of the ASP Response object was set to FALSE by default. In a new installation of IIS 5.0, the Buffer property is set to TRUE by default. During an upgrade to IIS 5.0, the Buffer property will not be changed from its previous setting.

    Setting the Buffer property to TRUE can significantly improve the performance of large ASP applications in which users primarily connect to the application by means of a modem. You can enable buffering for your applications from the IIS snap-in or by adding the <% Response.Buffer = True %> statement to selected pages. You can also change the property for entire applications by using the IIS snap-in. For more information, see the IIS 5.0 documentation.

Multiple Sites and Clustering

  • Remove All IIS 5.0 Resources from a Cluster Before Uninstalling Microsoft Cluster Service

    All IIS resources, including NNTP and SMTP resources, must be removed from a cluster before Microsoft® Clustering is uninstalled. If they are not removed, you will not be able to stop or start the previously clustered IIS sites.

    To fix this, type the following at the command prompt for all previously clustered IIS resources:

    Inetpub\AdminScripts\adsutil.vbs set <service name>/<instance id>/ClusterEnabled 0

  • FrontPage Server Extensions Not Supported in Microsoft Clustering

    Microsoft FrontPage Server Extensions are not supported for resources in Microsoft Clustering.

  • Stopping Internet Services in Microsoft Clustering

    When using the new Restart IIS option in the IIS snap-in, or when using Iisreset.exe (the command-line version of this feature), to stop IIS 5.0, Microsoft Clustering will attempt to automatically restart IIS.

    To keep Microsoft Clustering from automatically restarting IIS:
    1. Open a connection to the cluster where IIS 5.0 cluster resources are located, and then take all IIS cluster resources off line.
    2. In the IIS snap-in, right-click the Web service, and then click Restart IIS.
  • ASP and FTP Sessions Will Not Fail Over

    ASP and FTP sessions do not fail over to other nodes in Microsoft Clustering. ASP session information is not lost if the affected computer fails back before the session times out, and if the original failure wasn't due to IIS stopping unexpectedly. However, FTP sessions are lost and must be restarted. In both cases, clients will need to reestablish the connection if a failover occurs on the server.

  • Clustered NNTP and SMTP Resources

    Must be Stopped by Using Cluster Administrator User Interface NNTP and SMTP resources that are part of Microsoft Clustering must be stopped using the Cluster Administration user interface. Using the IIS snap-in will not stop them.

  • Using Clustered Host Header Sites

    If you are using clustered Web sites that use host headers, you must set the ServerAutoStart metabase property to TRUE for these sites.

    To set this property type the following at the command prompt:

    %SystemDrive%\inetpub\adminscripts\adsutil.vbs set w3svc/<instance id>/ServerAutoStart True

    where <instance id> is the instance ID of the virtual host sites that are part of the cluster.

  • Deleting Clustered Resources

    If you are deleting clustered IIS 5.0 resources, you need to use a two-step process:
    1. In the Cluster Administration user interface, remove the resources from the cluster.
    2. In the IIS snap-in, delete the resources.


  • Microsoft Proxy Server 2.0 Will Not Function After Upgrade

    If you are installing Windows 2000 Beta 2 or later on a computer with Microsoft Proxy Server 2.0, you must install an update to Proxy Server 2.0. Refer to for details. Without the update, Proxy Server will not function and IIS will be unable to start.

  • FrontPage Webs Not Accessible After Upgrade from Windows 98

    If you were using Microsoft FrontPage 98 Server Extensions, or earlier versions, with Microsoft Windows 98 and Personal Web Server, then the FrontPage Server Extensions will no longer work after upgrading to Windows 2000. This is because Microsoft FrontPage 2000 Server Extensions are required for IIS 5.0.

    To upgrade to the FrontPage 2000 Server Extensions from the Default Web Site:

    1. Open Add/Remove Programs in Control Panel.
    2. Click Add/Remove Windows Components to bring up the Windows Components Wizard.
    3. Click Next.
    4. Select Internet Information Services (IIS), and then click Details.
    5. Select FrontPage 2000 Server Extensions, and then click OK.
    6. Click Next to complete the Wizard and to install the FrontPage 2000 Server Extensions. To upgrade to the FrontPage 2000 Server Extensions on other virtual Web sites:

    7. At the command prompt, navigate to the \Program Files\Common Files\Microsoft Shared\Web Server Extensions\40\bin directory.
    8. In this directory, type the following at the command prompt:

      fpsrvadm -o upgrade -p all

  • Problems Starting Out-of-Process Applications After Changing Account Information

    This is due to the user account's username and password information not being synchronized after the change. You might receive Event Log errors telling you that your IWAM_computername account could not be logged on. If you encounter this problem, run the synciwam script to synchronize the passwords.

    To run the script, at the command prompt type cscript synciwam.vbs [-v|-h] -v uses verbose mode and prints a log of the script's activity. -h prints the script Help information.
  • Using the MyInfo, PageCounter, and Counters Objects After an Upgrade

    To use your current data for these objects after an upgrade to IIS 5.0, you must move their data files to the %WINDIR%\inetsrv\Data directory, which is created by IIS during the upgrade. Move the MyInfo.xml and the Counters.txt files from the %WINDIR%\inetsrv\ directory and the %WINDIR%HitCnt.cnt file to the new directory %WINDIR%\inetsrv\Data. ("%WINDIR%" is the Windows installation directory.) The components will then append information to your files.

Documentation Addenda

  • Site Server Express 2.0 Documentation

    If you've upgraded from the Microsoft Windows NT 4.0 Option Pack with Microsoft Site Server Express components to IIS 5.0, the documentation for Site Server Express 2.0 can now be accessed by typing http://localhost/iishelp/sse/misc/default.asp in the address bar of the browser on the computer running IIS.
  • Seeing the "Welcome to Microsoft Windows NT 4.0 Option Pack" Page After Upgrading to Windows 2000

    If you are upgrading to Windows 2000 and have not changed the Default.asp file for the Default Web Site, visitors to your site will see the old IIS 4.0 welcome page when they type the URL http://<servername>/ in their browser.

    To set IIS so that users see the new IIS 5.0 welcome page:

    1. Open the Properties Sheet for the Default Web Site in the IIS snap-in.
    2. On the Documents tab, select the file default.asp, and then click Remove.
    If you want visitors to your site to see a welcome page that you created, replace the IIS 4.0 Default.asp file with your own Default.asp file.
  • Hosting Multiple Web Sites

    The IIS 5.0 documentation says that if you use multiple IP addresses to host multiple Web sites, you will need an additional network card for each IP address. In fact, it is possible to bind multiple IP addresses to a single network card, although this configuration is not recommended for sites with high volumes of Internet traffic.

    NOTE: Microsoft Windows 2000 Professional with IIS 5.0 can host one Web site and one FTP site on a single computer. If you would like to host multiple Web or FTP sites on a single computer, consider upgrading to Microsoft Windows 2000 Server.

  • Documentation Correction for DisableSocketPooling

    The IIS documentation states that sockets are shared between sites that use the same socket number but different IP addresses. This is incorrect. Sockets are shared between sites that use the same port number but different IP addresses.

  • Adsutil.exe Not Included in Samples

    The Adsutil.exe utility is not included in the samples, as mentioned in the documentation.

Getting Help and Providing Feedback

Peer-to-peer newsgroups are available to help you interact with other users of our products. You can use any newsreader software to access these newsgroups, but you might need to configure it in order to read them. When prompted for News Server, specify You do not need to enter an account name or password. Before posting to the newsgroups, please review the Microsoft Newsgroup Rules of Conduct. For IIS 5.0 issues, please use:


Copyright Information

©1998-1999 Microsoft Corporation

These materials are provided "as-is," for informational purposes only.

Neither Microsoft nor its suppliers makes any warranty, express or implied with respect to the content of these materials or the accuracy of any information contained herein, including, without limitation, the implied warranties of merchantability or fitness for a particular purpose. Because some states/jurisdictions do not allow exclusions of implied warranties, the above limitation may not apply to you.

Neither Microsoft nor its suppliers shall have any liability for any damages whatsoever including consequential, incidental, direct, indirect, special, and lost profits. Because some states/jurisdictions do not allow exclusions of implied warranties, the above limitation may not apply to you. In any event, Microsoft's and its suppliers' entire liability in any manner arising out of these materials, whether by tort, contract, or otherwise shall not exceed the suggested retail price of these materials.

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