Snapshot Web Application Pool keeps stopping

Get Snapshot Web working on same IIS server as Exchange - Application Pool keeps stopping

When trying to run snapshot on the same IIS instance as Exchange, you can sometimes get a error where the Snapshot application pool just stops, and you have to manually start it again.

This is due to some exchange components being 64bit, but Snapshot requires 32bit.


You need to add the "bitness64" parts to the below 3 lines in C:\Windows\System32\inetsrv\config\application.config

            <add name="kerbauth" image="C:\Program Files\Microsoft\Exchange Server\V14\Bin\kerbauth.dll" preCondition="bitness64" />
            <add name="exppw" image="C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\Owa\auth\exppw.dll" preCondition="bitness64" />
            <filter name="Exchange OWA Cookie Authentication ISAPI Filter" path="C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\owa\auth\owaauth.dll" enabled="true" preCondition="bitness64" />

If you still get an error, it may be around dynamic or static compression module.

If that is the case, the steps below can be completed to fix this:

-> Take IIS backup.
-> Open IIS
-> Click on server module node at the top of the left hand tree and choose "Modules".
-> Right click on DynamicCompressionModule and choose "Unlock"
-> Right click on StaticCompressionModule and choose "Unlock".
-> Open desired websites -> Open Modules.
-> Right click on DynamicCompressionModules and choose "remove".
-> Right click on StaticCompressionModule and choose "Remove".

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