Blog Objective

This is a blog that attempts to make life easier by noting down the author's accrued knowledge and experiences.
The author has dealt with several IT projects (in Java EE and .NET) and is a specialist in system development.

24 August 2011

Differences Between IIS 6 and IIS 7+

The concepts in both IIS versions are generally the same with the exception of WAS (Windows Process Activation Server) introduced in IIS 7+.

With reference to the following diagrams, the class/ object denoted in Green (Http.sys) runs in Kernel mode while the rest run in User mode.

IIS 6

The concepts are denoted in the following UML Class diagram:

image

The delegation model is captured in the following UML Sequence diagram:

image

IIS 7

The concepts are denoted in the following UML Class diagram:

image

The delegation model is captured in the following UML Sequence diagram:

image

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