In working through the installation guide for Tridion 2013, I note that whenever the configuration of an application pool is mentioned, configuration instructions are given for both Integrated mode and Classic mode application pools. The documentation seems strangely agnostic about whether you should use Integrated or Classic.

I can imagine that there is a need to retain support for customers' web applications which can only run in Classic mode. On the other hand, if I'm installing a web service built entirely by Tridion, then surely a bit of prescriptive advice wouldn't go amiss.

So for what it's worth, I'm proposing that unless you have specific reasons relating to your own web application that dictate that it must run in a Classic pool, you should always choose Integrated. For services built by Tridion, you should always choose Integrated. Am I correct, or are there other concerns that would influence this decision?

1 Answer 1


Yes, Integrated will typically give better performance on IIS. Only use Classic if your app is not compatible with Integrated.

  • Thanks Chris. I think you are right. I had wondered if there would be alternative views on this, or exceptional cases that needed different treatment, but so far nothing. Commented May 6, 2013 at 22:12
  • As much as I hate to do so, I have permanently locked this question due to the repeated number of spam edits it has been getting (2 to 3 a day.) Not an ideal situation but if a solution to the spam edit issue comes up later on we a moderator can unlock this post in the future. Commented Jan 24, 2014 at 6:42

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