How the worker process loads the web application.
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ASP.NET Internals Request Architecture(Lesson1)
ASP.NET Internals Request Architecture(Lesson2)
Let’s examine some details about how the worker process loads the web application.
1-The worker process loads the web application assembly.
2- Allocating one application domain for the application.
When the worker process 3-starts a web application (in its application domain),
4-The web application inherits the identity of the process (NetworkService by default) 
if impersonation is disabled. However, if impersonation is enabled, each web application runs under the account that is authenticated by IIS or the user account that is configured in the web.config.
- Identity impersonate=”true”
- If only anonymous access is enabled by IIS, the identity that is passed to the web application will be [machine]\IUSR_[machine]
- If only integrated Windows authentication is enabled in IIS, the identity that is passed to the web application will be the authenticated windows user.
- If both integrated windows authentication and anonymous access are enabled, the identity that is passed to the web application will depend on the one that was authenticated by IIS. IIS first attempts to use anonymous access to grant a user access to a web application resource. If this attempt fails, it then tries to use windows authentication
- Identity impersonate=”true” username=”username” password=”password” This allows the web application to run under specific identity
Thx Hope lesson 3 be useful for U ... tomorrow will Complete with
Differences between IIS 6.0 , IIS 5.0 and IIS 7.0 in the way they handle requests.
References
http://www.codeproject.com/KB/aspnet/aspnetrequestarchitecture.aspx
http://www.codeproject.com/KB/aspnet/aspnetviewstatepagecycle.aspx
http://www.codeproject.com/KB/aspnet/PageLifeCycle.aspx
