When you try to create a new ASP.NET Web application in Visual Studio .NET 2003, you receive the following error message:

Visual Studio .NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to run ASP.NET Web applications or services.

MORE INFORMATION

To fix IIS mappings for ASP.NET, run the Aspnet_regiis.exe utility:

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When you view an .aspx page in a Microsoft ASP.NET Web application, you may experience the following symptoms:

The typical behavior is that the server-side code for the .aspx page is processed, and then the code is not sent to the Web browser in its raw form.

Symptoms that are exhibited when you use Visual Studio .NET to debug ASP.NET

When you debug an ASP.NET application in Microsoft Visual Studio .NET, you may receive the following error message in the IDE:

Error while trying to run project: Unable to start debugging on the Web server. The server does not support debugging of ASP.NET or ATL Server applications. Run setup to install the Visual Studio .NET server components. If setup has been run, verify that a valid URL has been specified.

You may also want to refer to the ASP.NET and ATL Server debugging topic in the online documentation. Would you like to disable future attempts to debug ASP.NET pages for this project?

CAUSE

After you install the Microsoft .NET Framework Software Development Kit (SDK) or Microsoft Visual Studio .NET, Microsoft Internet Information Services (IIS) mappings are created to associate new file name extensions and new settings for ASP.NET.

The new settings are not in place if either of the following statements applies to your situation:

RESOLUTION

To resolve this issue, repair the IIS mappings so that the file name extensions for ASP.NET are properly associated. There are two ways to fix IIS mappings for ASP.NET.

To repair IIS mappings for ASP.NET, run the Aspnet_regiis.exe utlity. To do so, follow these steps:

To repair IIS mappings for ASP.NET, you must register Aspnet_isapi.dll. To do so, follow these steps:

STATUS

This behavior is by design.

MORE INFORMATION

Steps to reproduce the behavior

Follow these steps to verify whether or not you see the issue described in this article. This test checks for the typical symptoms that are related to the issue. If you are already familiar with how IIS application mappings work, you can also follow the steps in the “How To Verify Your IIS Application Mappings” section of this article to verify the configuration of your Web server.

private void Page_Load(object sender, System.EventArgs e)

{

        Response.Write("This code was executed");

}

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    Response.Write("This code was executed")

End Sub

<%@ Page language="c#" Codebehind="MappingsTest.aspx.cs" AutoEventWireup="false" Inherits="MyWebApp.MappingsTest" %>

How to verify your IIS application mappings

To verify that the application mappings are correct, follow these steps:

APPLIES TO

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Microsoft OLE DB Provider for ODBC Drivers error ’80004005′
[Microsoft][ODBC Microsoft Access 97 Driver] Operation must use an updateable query.

CAUSE

This article explains the four primary causes of this error and the corresponding workarounds. Although this article refers to Microsoft Access databases, the information provided here also applies to other types of databases.

RESOLUTION

This error is typically encountered when your script attempts to perform an UPDATE or some other action that alters the information in the database. This error occurs because ADO is unable to write to the database for one of the following reasons:

      SQL = "UPDATE Products Set UnitPrice = 2;"

      Set Conn = Server.CreateObject("ADODB.Connection")

      Conn.Mode = 3      '3 = adModeReadWrite

      Conn.Open "myDSN"

      Conn.Execute(SQL)

      Conn.Close

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Microsoft Knowledge Base Article

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This problem occurs if the following conditions are true:

Note This problem does not occur when you use data binding to view data.

CAUSE

This problem occurs because of a limitation of ASP.NET 2.0. If the two conditions that the “Symptoms” section mentions are true when you use data binding to update data, ASP.NET 2.0 cannot parse the control tree. The operation stops when ASP.NET 2.0 is parsing the first complex control.

RESOLUTION

To resolve this problem, do not use nested ASP.NET controls in templated controls.

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Server Unavailable

Additionally, an error message that resembles following is logged in the Application log:
Event Type: Error
Event Source: ASP.NET 2.0
Event Category: None
Event ID: 1088
Date: Date
Time: Time
User: N/A
Computer: ComputerName
Description: Failed to execute request because the App-Domain could not be created. Error: 0×80070005 Access is denied.

CAUSE

This issue may occur if you try to run the ASP.NET 2.0 application after you perform an in-place upgrade of the existing Windows Server 2003 installation by using a Windows Server 2003 CD that is integrated with Windows Server 2003 Service Pack 2 (SP2).

When you perform an in-place upgrade, the upgrade process resets the permissions on the Microsoft Internet Information Services (IIS) metabase and on other folders that are used by ASP.NET. Therefore, the custom service account will not have permissions to access these folders, and you receive the error message that is mentioned in the “Symptoms” section.

Note An in-place upgrade is also known as a “repair installation.”

RESOLUTION

To resolve this issue, configure the custom service account by using the Aspnet_regiis.exe utility. At a command prompt, run the Aspnet_regiis.exe utility from ASP.NET 2.0 by using the -ga switch:

Aspnet_regiis -ga AccountName

Note In this command, AccountName represents the custom service account.

For example, you can run the following command to grant permissions to the NT AUTHORITY\NETWORK SERVICE account:

aspnet_regiis -ga “NT AUTHORITY\NETWORK SERVICE”

.

APPLIES TO

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
Microsoft Corporation. All rights reserved. Terms of Use | Trademarks