Ignored changes System. Web. dll 2.0 (1)

With vs.net 2008 and. the official version of net framework 3.5 was released. Many of my friends' eyes were attracted by the gorgeous 3.5 series, but many people did not know that they were familiar with it. net framework 2.0 has quietly changed ~~~~~~~

According to the latest msdn explanation,. net framwork 3.5 is not only in the sense of version 3.5, it involves
. Net framework 2.0 (sp1)
. Net framework 3.0 (sp1)

Taking system. web. dll, a well-known component that cannot be used in a well-developed assembly, is currently known and has gone through five important versions (I hope my friends can provide additional information)

2.0.50727.42 was fixed in September 23, 2005, the initial. net 2.0 framework
2.0.50727.210 revised on December 10, September 12, 2006
2.0.50727.832 fixed in April 13, 2007 the legendary. net framework 2.0 sp1?
2.0.50727.1378 revised on April 9, June 8, 2007
2.0.50727.1433 revised on April 9, October 24, 2007

For the internal revision of System. Web. dll, many users may want to know What major changes have taken place in each version.

1.AddedIn IIS 7.0Support for integrated Pipelines

In version 2.0.50727.42, that is, in the initial Asp.net 2.0, only ISAPI pipelines are supported,
ProcessRequest of the ISAPIRuntime class is the entry of the program and interacts directly with IIS.

In the new version 2.0.50727.832
Added IIS7.0 support
PipelineRuntime is used to receive and process messages from IIS 7.0 and interact with IIS 7.0. Therefore, System. web. dll has a new member.
IIS7WorkerRequest is used to encapsulate messages in IIS 7.0.
Enumerative RequestNotification is used to identify different requests in the application Lifecycle
..........
New members include:
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As IIS 7.0 is integrated, the original code will definitely change.
Because the original Http pipeline only supports ISAPI, in order to support IIS 7.0 pipeline Integration

Changes include:

HttpApplication. InitInternal () method rewritten by Microsoft
Encapsulate the original ISAPI Pipeline Code in ApplicationStepManager.
Added the PipelineStepManager class.
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2InSystem. web. dllBuilt-inAsp.net AjaxExtension support
With the release of Asp.net Ajax 1.0, Aps.net Ajax is also quietly changing. It is slowly penetrating the System. web. dll assembly.
Truncated from Page class
Two new attributes are added for Page, but they are internal and have little impact on end users.

In addition, in System. web. Extension. dll 3.5, IScriptManager has been moved to System. web. dll, as shown in figure
At the same time, our System. web. dll program has access to System. Web. Extension. dll 3.5.
As shown in, IScriptManager and IUpdatePanel sequence are added to the latest System. web. dll.
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