Application Dependencies <applicationDependencies>

The <applicationDependencies> element of the <security> element works in tandem with the <isapiCgiRestriction> element to define which applications have dependencies on one or more CGI or ISAPI extension restrictions. If an application is contained in this element , the application has dependencies on an item (or multiple items) in the <isapiCgiRestriction> element.

The <applicationDependencies> element is included in the default installation of IIS 7.

There is no user interface for configuring the <applicationDependencies> element for IIS 7. For examples of how to configure the <applicationDependencies> element programmatically, see the Code Samples section of this document.

None.

The following configuration sample illustrates the application dependencies in the <applicationDependencies> element for the Default Web Site and the related entries in the <isapiCgiRestriction> after you install Active Server Pages (ASP) and a custom application on IIS 7:

• The Active Server Pages application has a dependency on the "ASP" ISAPI/CGI restriction group.
• The custom application has a dependency on the "MyCustomGroup" ISAPI/CGI restriction group, and an additional dependency on the ASP ISAPI/CGI restriction group.

<system.webServer>
   <security>
      <isapiCgiRestriction notListedIsapisAllowed="false" notListedCgisAllowed="false">
         <clear />
         <add allowed="true" groupId="ASP"
            path="C:\Windows\system32\inetsrv\asp.dll" 
            description="Active Server Pages" />
         <add allowed="true" groupId="MyCustomGroup"
            path="C:\Windows\system32\inetsrv\mycustom.dll"
            description="My Custom Application" />
      </isapiCgiRestriction>
   </security>
</system.webServer>

<location path="Default Web Site">
   <system.webServer>
      <security>
         <applicationDependencies>
            <application name="My Custom Application" groupId="MyCustomGroup">
               <add groupId="ASP" />
            </application>
         </applicationDependencies>
      </security>
   </system.webServer>
</location>

The following configuration sample illustrates the application dependencies in the <applicationDependencies> element for the Default Web Site. The custom application has a dependency on the "MyCustomGroup" ISAPI/CGI restriction group, and an additional dependency on the ASP ISAPI/CGI restriction group.

appcmd.exe set config "Default Web Site" -section:system.webServer/security/applicationDependencies /+"[name='My Custom Application',groupId='MyCustomGroup']" /commit:apphost

appcmd.exe set config "Default Web Site" -section:system.webServer/security/applicationDependencies /+"[name='My Custom Application',groupId='MyCustomGroup'].[groupId='ASP']" /commit:apphost

using System;
using System.Text;
using Microsoft.Web.Administration;

internal static class Sample
{
   private static void Main()
   {
      using (ServerManager serverManager = new ServerManager())
      {
         Configuration config = serverManager.GetApplicationHostConfiguration();
         ConfigurationSection applicationDependenciesSection = config.GetSection("system.webServer/security/applicationDependencies", "Default Web Site");

         ConfigurationElementCollection applicationDependenciesCollection = applicationDependenciesSection.GetCollection();
         ConfigurationElement applicationElement = applicationDependenciesCollection.CreateElement("application");
         applicationElement["name"] = @"My Custom Application";
         applicationElement["groupId"] = @"MyCustomGroup";

         ConfigurationElementCollection applicationCollection = applicationElement.GetCollection();
         ConfigurationElement addElement = applicationCollection.CreateElement("add");
         addElement["groupId"] = @"ASP";
         applicationCollection.Add(addElement);
         applicationDependenciesCollection.Add(applicationElement);

         serverManager.CommitChanges();
      }
   }
}

Imports System
Imports System.Text
Imports Microsoft.Web.Administration

Module Sample

   Sub Main()
      Dim serverManager As ServerManager = New ServerManager
      Dim config As Configuration = serverManager.GetApplicationHostConfiguration
      Dim applicationDependenciesSection As ConfigurationSection = config.GetSection("system.webServer/security/applicationDependencies", "Default Web Site")

      Dim applicationDependenciesCollection As ConfigurationElementCollection = applicationDependenciesSection.GetCollection
      Dim applicationElement As ConfigurationElement = applicationDependenciesCollection.CreateElement("application")
      applicationElement("name") = "My Custom Application"
      applicationElement("groupId") = "MyCustomGroup"

      Dim applicationCollection As ConfigurationElementCollection = applicationElement.GetCollection
      Dim addElement As ConfigurationElement = applicationCollection.CreateElement("add")
      addElement("groupId") = "ASP"
      applicationCollection.Add(addElement)
      applicationDependenciesCollection.Add(applicationElement)

      serverManager.CommitChanges()
   End Sub

End Module

var adminManager = new ActiveXObject('Microsoft.ApplicationHost.WritableAdminManager');
adminManager.CommitPath = "MACHINE/WEBROOT/APPHOST";
var applicationDependenciesSection = adminManager.GetAdminSection("system.webServer/security/applicationDependencies", "MACHINE/WEBROOT/APPHOST/Default Web Site");

var applicationDependenciesCollection = applicationDependenciesSection.Collection;
var applicationElement = applicationDependenciesCollection.CreateNewElement("application");
applicationElement.Properties.Item("name").Value = "My Custom Application";
applicationElement.Properties.Item("groupId").Value = "MyCustomGroup";

var applicationCollection = applicationElement.Collection;
var addElement = applicationCollection.CreateNewElement("add");
addElement.Properties.Item("groupId").Value = "ASP";
applicationCollection.AddElement(addElement);
applicationDependenciesCollection.AddElement(applicationElement);

adminManager.CommitChanges();

Set adminManager = WScript.CreateObject("Microsoft.ApplicationHost.WritableAdminManager")
adminManager.CommitPath = "MACHINE/WEBROOT/APPHOST"
Set applicationDependenciesSection = adminManager.GetAdminSection("system.webServer/security/applicationDependencies", "MACHINE/WEBROOT/APPHOST/Default Web Site")

Set applicationDependenciesCollection = applicationDependenciesSection.Collection
Set applicationElement = applicationDependenciesCollection.CreateNewElement("application")
applicationElement.Properties.Item("name").Value = "My Custom Application"
applicationElement.Properties.Item("groupId").Value = "MyCustomGroup"

Set applicationCollection = applicationElement.Collection
Set addElement = applicationCollection.CreateNewElement("add")
addElement.Properties.Item("groupId").Value = "ASP"
applicationCollection.AddElement(addElement)
applicationDependenciesCollection.AddElement(applicationElement)

adminManager.CommitChanges()