Topic Covered : ASP.NET Runtime Engine and Visual Studio Role of a Web Server Key Concepts of IIS IIS and ASP.NET Requests Processing Inside Worker Process Internals of Http Pipeline Page Lifecycle Internals

2.  ASP.NET Runtime Engine and Visual Studio
 Role of a Web Server
 Key Concepts of IIS
 IIS and ASP.NET Requests Processing
 Inside Worker Process
 Internals of Http Pipeline
 Page Lifecycle Internals

3.  Visual Studio IDE has it own Integrated ASP.NET Runtime
 ASP.NET Development Server
 ASP.NET Development Server Runs on Specific Port
Local Development System
Visual Studio
Web
ASP.NET Development Server
Application Webdev.WebServer20.exe Webdev.WebServer40.exe

5. Local Development System Process
Request
(w3wp.exe)
Visual Studio Local IIS
Request
Response
Web Worker
Application Process

6. Worker Worker Worker
Process Process Process
w3wp
Application Application
IIS Application
Pool Pool Pool
Web Application 3
Web Application 1 Web Application 2
Web Application 4

7. IIS User Level
W3wp.exe W3wp.exe W3wp.exe
Application Application Application
Pool Pool Pool
HTTP.SYS
ApplicationHost.Config

10. Svchost.exe
World Wide Web Publishing Windows Process Activation
Service (WWW service) Service (WAS)
HTTP.SYS

11. ApplicationHost.Config
Svchost.exe
World Wide Web Publishing Windows Process
Service (WWW service) Activation Service (WAS)
HTTP.SYS

12. Worker Process (w3wp.exe)
ApplicationHost.Config
Svchost.exe
World Wide Web Publishing Windows Process
Service (WWW service) Activation Service (WAS)
HTTP.SYS

13. W3wp.exe
aspnet_isapi.dll
.NET Runtime
HTTP Handler HTTP Handler

15. Create New Instance of
HttpContext
ISAPIRuntime.ProcessRequest() HttpRuntime.ProcessRequest
Load HttpApplication
Calls HttpApplication.Init()

16.  Created By HTTPApplicationFacotry class
 It’s create pool of HTTPApplication Object
W3wp.exe
Web Server Core Modules

18. Application
HTTPModule
Handler Factory
HTTPHandler
ASP.NET Page

22. W3wp.exe
Web Server Core Modules
ApplicationHost.Config
Svchost.exe
World Wide Web Publishing Windows Process
Service (WWW service) Activation Service (WAS)
HTTP.SYS

24. ASP.NET Pages
HTTPPipeline
Global.aspx
ASP.NET Runtime
IIS

27.  Visual Studio Integrated Web Server Execution Process
 Application Pool, Worker Process, Web Farm, Web
Garden
 User Level and Kernel Level of IIS
 Application Configuration, SVCHOST.EXE, WWW,
WAS
 IISAPI Filter, HTTP Module and HTTP Handler ,
Handler Factory
 HTTP Pipeline, ASP.NET Routing Module
 Page Life Cycle Internal Events

28. http://msdn.microsoft.com/ http://technet.microsoft.com/
msdnindia @msdnindia technetindia @technetindia

29. Thank You !