What is the maximum size of a ASP.NET session object?

Patrick Y. Ng who compiled the informative Session State FAQ has an answer for this somewhat hypothetical question in a newsgroup posting -

InProc mode: limit = virtual memory limit
StateServer mode: limit = virtual memory limit of the machine which runs state server
SQLServer mode: limit = diskspace on SQL server.

On a related note, this Case Study on lost session variables and appdomain recycles, makes for insightful reading.

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