Performance Considerations
The help topic “Developing High-Performance ASP.NET Applications” (available at ms-help://MS.VSCC/MS.MSDNVS/cpguide/html/cpcondevelopinghigh-performanceaspnetapplications.htm) provides options that are worth exploring. I won't repeat that information in its entirety, but the list that follows is provided for quick reference.
Disable the session state unless you are using it. Add the enableSessionState= "false" attribute to the page directive to disable the session state.
You can store session information in a variety of in-process and out-of-process providers. An example of an in-process provider is the Session object; an example of an out-of-process provider is SQL Server. Choose your session information provider accordingly. ...
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