IIS7 500 Internal Server Error

In IIS7, web server 2008, I was having problems on a couple of site with authentication, so I found my way to the "Feature Delegation" page and clicked the "Reset All Delegation" link.

Now, none of my sites work. They all have an error:

500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.

Any ideas how to fix this?

I did a reboot, reset, restart etc.

Starr DuskkASP.NET VB.NET DeveloperAsked:
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Starr DuskkASP.NET VB.NET DeveloperAuthor Commented:

I found the answer.
The Reset All Delegates sets most everything to Read only.
I went through one by one to figure out where it was failing and changed some to read write.
The combination that finally got it to stop giving that error was:
Setting the below 2 to Read/Write instead of just Read:
Handler Mappings

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Microsoft IIS Web Server

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