2. Features of IIS 7.0
3. Basic Architecture of IIS 7.0
4. How To Deploy ASP. Net Websites on IIS 7.0
5. How To Create Application Pool
6. Assign Application Pool To Your Application
7. Configure Web Garden on IIS 7.0
* What is Application Pool?
o Types of Application Pool
o Identity Of Application Pool
* How To Create An Application Pool and Assign To a Web Application
* What is Web Garden?
* How To Create Web Garden?
* Is it Recommended to use Web Garden ?
8. IIS 6.0 Vs IIS 7.0
9. Where do I get IIS 7.0
Introduction to IIS 7.0
Microsoft Internet Information Services (IIS) 7.0 in Windows Server 2008 and Windows Vista provides a secure, manageable platform for developing and administrating and hosting Web applications and services. It has been completely redesigned and Restructured .IIS 7.0 provides features and functionality for administrators to effectively manage Web infrastructures; developers to rapidly build Web applications and services; and hosters to Web hosting .
Features of IIS 7.0
Following are some features of IIS 7.0
- IIS 7.0 provides features and functionality that enable administrators to reliably and effectively manage Web infrastructures.
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IIS 7.0 has a distributed file-based configuration system that enables IIS settings to be stored in web.config files along with the ASP. NET settings.
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IIS 7.0 provides a cost-effective, more scalable Web server platform for delivering reliable Web hosting to a broad set of customers.
Major innovations in IIS 7.0 :
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A modular, extensible core Web server
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A unified, distributed file-based configuration system
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Integrated health monitoring and diagnostics
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A set of new administration tools with delegation support
For More Features and Product Understanding Check Here
Basic Architecture of IIS 7.0
Following Diagram are showing the Overall Architecture of IIS 7.0 Which Contain HTTP.Sys, SvcHost.exe,Application Pool and Worker Process(W3Wp).
Main Components of IIS 7.0 are HTTP.Sys, Svchost.Exe, Application Pool , Worker Process (W3WP.exe) and Configuration Store. HTTP.Sys : It the Kernel mode Protocol stack which listen the HTTP and HTTPS Request. W3SVC and WAS are the part of Svchost.exe . W3SVC is the Listner of Request from kernel mode that passed by the HTTP.Sys. W3SVC also interact with Windows Activation Process Which is Managed the Worker Process by Starting , Stopping and Recycling the Application Pool . WAS also Responsible for Health Monitor of Application Pool during Runtime. Configuration Store All web.config and Asp.Net Setting and other configuration in XML Hierarchy form. W3wp.exe is a long-running process that processes requests and generates responses.
Following Diagram Shown you the Process Flow of IIS 7.0. This the flow of User Request to IIS and Get the Response from IIS.
For more Details Please Click Here
How To Deploy ASP. Net Websites on IIS 7.0
From Now onward I will describe one Example To deploy your ASP.Net websites on IIS 7.0 .
Step 1: From Visual Studio Published Your Web Application .
Step 2: Copy The Published Application Folder to "C:\intepub\wwwroot" [default] Folder.
Step 3: From RUN - > inetmgr -> OK
Following Screen Will Come . This is the main Page for Any Application. There are Three Panel.
You can Change Security Settings on Authentication Section. Bydefault Setting will be set from your web.config itself. As in my web.config Form Authentication was set that's why, Forms Authentication has been Enabled. if we want to change the Status just double click and update status to Enabled to Disabled or Vice Versa.
A site can contain many applications including that site’s default application, which is called the root application. In addition to belonging to a site, an application belongs to an application pool, which isolates the application from applications in other application pools on the server .
Step 1: Right Click on Application Pool and Give the Name of your Pool here i have given "pool" and select Framework and click on OK
Step 2 : if you are writting some thing on server [ May be writes Error Events Logs ] , you need to Change the Pool Identity to Local System . Right Click on Pool Identity set seeting as following image
There are Three Identity of Application Pool
- Network Service
- Local Service
- Local System
Now , we need to assign the Application Pool to our web application
Step 1: Right Click on "TestWeb" Application and Select "Advanced Settings"
Step 2: Finaly Assign Your Created Application Pool "pool" to "TestWeb" Application.
Now you can run your application by just typing http:\\localhost\testweb and it can be accessable on network by ip also.
Configure Web Gardens in IIS 7.0
Application pools used to separate set of IIS worker processes that share the same configuration. Application pools enable us to isolate our web application for better security, reliability, and availability. The worker process serves as the process boundary that separates each application pool so that when one worker process or application is having an issue, other applications or worker processes are not affected.
In your IIS there may be more than on Web sites hosted and by creating Application Pool , you can just Assign a Separate Worker Process to your application. I have already discussed how you can assign Application Pool To your web application
Type of Application Pool :
There are Two Predefined Applocation Pool is IIS 7.0
- DefaultAppPool (Integrated)
- ClassicAppPool
None of Application Pool Installed bydefault when IIS 7.0 is installed. Classic Application Pool is installed when Asp.Net 2.0 is installed in the System
Identity Of Application Pool :
Application pool identity configuration is an important aspect of security in IIS 7.0, because it determines the identity of the worker process when the process is accessing resource. This Settings comes form IIS 6.0. in IIS 5.0 There Application pool runs under the local system account. In IIS 7.0 there are Three predefine Identity , that are same with IIS 6.0
| Applicationpool Identity | Description |
| LocalSystem | LocalSystem is a built-in account that has |
| LocalServices | LocalServices Built-in account has privileges of an authenticated local user account . It does not have any network access permission |
| NetworkServices | This is the default Identity of Application Pool NetworkServices has privileges of authenticated local user aaccount and it can have access remote resource as machine account. |
Creating Application Pool And Assign it to a Web Application
By default Each Application Pool runs with a Single Worker Process (W3Wp.exe) . We can Assign multiple Worker Process With a Single Application Pool. An Application Poll with multiple Worker process called "Web Gardens" . Many worker processes with same Application Pool can sometimes provide better throughput performance and application response time. And Each Worker Process Should have there own Thread and Own Memory space.
As Given in Picture, in IIS Server there may be multiple Applicationpool and each application pool having at least a single Worker Process. Web Garden should contain multiple Worker process.
There are some Certain Restriction to use Web Garden with your web application. If we use Session Mode to "in proc" , our application will not work correctly because session will be handled by different Worker Process. For Avoid this Type of problem we should have to use Session Mode "out proc" and we can use "Session State Server" or "SQL-Server Session State".
Main Advantage : The worker processes in a Web garden share the requests that arrive for that particular application pool. If a worker process fails, another worker process can continue to process requests.
Create a New Application Pool. Right Click -> Advance Setting -> Go To Process Model Section , Set the Value for Maximum Worker Process
It not always recommended to use Web Garden To Your Application affects to performance of your sites except in very specific cases like some long running Synchronous request or Application is very unstable .
IIS 6.0 Vs IIS 7.0
Main Advantages of IIS 7.0 is Modular Design. Which gives some benefits fo to IIS 7.0 over IIS 6.0. Followin table showing you some difference of IIS 6.0 and IIS 7.0 .
| Features | IIS 6.0 | IIS 7.0 |
| Architecture | Monolithic | Modular |
| Setup | Most Features Installed | Minimum installtion based on role |
| Extended Features | ISAPI Filter and ISAPI Extention | Added Module and handler in managed or native code |
| Customize UI | Normal | Customize for .NET |
There are many more Difference are There.
Where Do I Get IIS 7.0
IIS 7.0 Will Not available with All Operating System . There are some Specific OS and Specific Version For IIS 7.0 .
| Operating System With Edition | Available |
| Windows Server 2008 | Yes |
| Windows Vista (Home Basic) | No (Default) Need to be Install |
| Windows Vista (Home Premium) | No (Default ) Need to be install |
| Windows Vista (Business) | Yes |
| Windows Vista ( Ultimate ) | Yes |
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