When client request for an aspx pages, request comes to kernel level off IIS means to HTTP.SYS
receives the request and based on the application pool name [ Which is already registred with the HTTP.SYS ] it send the request to worker process. Windows Activation process
works as mediator of them. w3wp.exe loads "aspnet_isapi.dll"
files to start the HTTPRuntime
objects and all request are passed through HTTPModule
and finally reached to HttpHandler
. This is the request pipeline. After end of Request pipeline ASP.NET Page lifecycle starts.
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