We are using 2008R2 Standard fully updated. We have IIS 7.0
If we browse to ip/localhost or localhost we get a 503 service unavailable error.
We dabbled with exchange 2010 a few years ago but eventually decided to go with hosted exchange. We eventually uninstalled it through control panel.
Fast forward to this weekend, we wanted to start using webapps through RDS. The system requires IIS to work but it isnt. We get the 503 service unavailable error.
The DefaultAppPool stops after the 5 rapid failures. If we increase it to 15, it stops after 15. We did have 3 orphaned apps related to exchange in the default pool. We created a pool called DeleteMe and moved them there (was easier than removing them for testing) We thought the error message in event viewer about "The Module DLL D:\Program Files\MicrosoftExchange Server\V14\Bin\kerbauth.dll failed to load" was the issue so we removed the offending code from the applicationHost.config file. That didnt solve it so we used appcmd to remove the orphaned programs. That didnt work either.
We made sure there wasnt a reservation for :80 in http acl's.
We make sure profile load was false
We checked as much as we could find on the internet to no avail
I think the issue has to do with the "The Module DLL D:\Program Files\MicrosoftExchange Server\V14\Bin\kerbauth.dll failed to load" error in event viewer. We removed it from the config file, and IIS apps. It must get called from somewhere else as well.
Im not sure what else to do. Any help would be appreciated.