FIX: You receive a 403.2 error message when you use an ISAPI extension .dll file as a default document

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SYMPTOMS

When you try to access the http://localhost/MyVirtual directory URL, you receive the following error message:

HTTP Error 403.2 - Forbidden: Read access is denied.

Note If the default document is specified in the request, you do not receive the error message.

This problem occurs if the following conditions are true when you create a virtual directory under the default Web site:

The Read check box for the virtual directory is not selected, and the Execute permissions property for the virtual directory is set to Scripts and Executables.

Note To determine if this condition is true, open the Microsoft Internet Information Services (IIS) Microsoft Management Console (MMC), and then view the Virtual Directory tab of the Properties dialog box for the virtual directory.
The Read check box is not selected for every file in the virtual directory.

Note To determine if this condition is true, open the IIS MMC, and then view the File tab of the Properties dialog box for every file in the virtual directory.
The virtual directory is using only Anonymous authentication.
The default document for the virtual directory is an Internet Server API (ISAPI) extension .dll file.

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RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   ---------------------------------------------------------
   23-Apr-2004  21:23  6.0.3790.166      340,480  W3core.dll

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