How to remove the Request Forwarder ISAPI (262674)


The information in this article applies to:

  • Microsoft Application Center 2000, when used with:
    • the operating system: Microsoft Windows 2000
This article was previously published under Q262674

SUMMARY

If you do not require the functionality of the Request Forwarder (RF) for a given Application Center cluster, you can remove it completely. But it is important to note that you will no longer get the benefits of the RF for this cluster. Because the RF is implemented as an Internet Server API (ISAPI) extension and filter, you can simply remove these through the use of the Internet Information Services (IIS) administrative facilities. This article provides the procedure to do this.

MORE INFORMATION

You can use the following steps to remove the RF.

Note Microsoft recommends that you perform this operation while the entire cluster is offline and not serving any load because the procedure will affect normal cluster operations. Also note that the steps must be completed on every member in the cluster, including the controller.

Note If you have Application Center 2000 Service Pack 2 installed, you must change the following metabase key to zero and then restart the Application Center cluster service before you perform these steps:

AppCenter/Cluster/MD_RF_REQUEST_FORWARDING_ENABLED (prop ID 57617)

To set this metabase key, you can use Mdutil.exe from the Support folder on the Application Center CD, and then run the following command: 
mdutil set appcenter/cluster -prop 57617 -value 0
  1. Start the Internet Service Manager MMC snap-in.
  2. Remove the RfFiltExt ISAPI filter from the IIS server. To do so, follow these steps:
    1. When you are connected to the appropriate computer, right-click the server node and select Properties from the pop-up menu.
    2. On the Internet Information Services tab, click the Edit button for the Master Properties of the WWW Service.
    3. Choose the ISAPI Filters tab.
    4. Select the RfFiltExt filter. Click Remove, and then click Apply.
    5. Click ok in the subsequent dialog boxes to return to the Internet Service Manager MMC snap-in user interface.
  3. Remove the ISAPI extension for .rqfw from the default Web site. To do so, follow these steps:
    1. While connected to the appropriate computer, right-click the server node and choose Properties from the pop-up menu.
    2. On the Internet Information Services tab, click the Edit button for the Master Properties of the WWW Service.
    3. Click the Home Directory tab, and then click Configuration under Application Settings.
    4. Select the application mapping for the .RQFW extension. Click Remove, and then click Apply.
    5. When you are prompted about which child nodes (Web sites) to also apply these settings to, click Select All, and then click ok to completely remove the extension.
    6. Click ok in the subsequent dialog boxes to return to the Internet Service Manager MMC snap-in user interface.
  4. Restart IIS so the ISAPI .dll file gets completely unloaded.
Modification Type:MinorLast Reviewed:8/24/2005
Keywords:kbhowto KB262674 kbAudDeveloper
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