HTTP Error 500.19 - Internal Server Error

When i was trying to deploy a website on iis 7,I was getting this error.

HTTP Error 500.19 - Internal Server Error
Description: The requested page cannot be accessed because the related configuration data for the page is invalid.

Error Code: 0x8007000d

Notification: BeginRequest

Module: IIS Web Core

Requested URL: http://localhost:8080/

Physical Path: E:\addressverket

Logon User: Not yet determined

Logon Method: Not yet determined

Handler: Not yet determined

Config Error: Unrecognized attribute 'allowOverride'

Config File: \\?\E:\addressverket\web.config

Config Source: 13:
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I am using windows Vista. I never deployed any site from that system.
I found in program and feature , i had forgotten to on iis and other asp.net services.It worked for me , might be this will also help you.
Here is the steps to on services:

- Control Panel
- Program and Features
- Turn Windows Features On or Off
Here you will find different - different services. checked those services whatever services you need to run your site.
That worked for me, hope it will also work for you