machine.config' is denied

Question

My application is running on windows server 2000 and IIS 6. Up until this morning the application was working fine. But now I'm getting the error below:

Configuration Error 
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. 

Parser Error Message: An error occurred loading a configuration file: Access to the path 'C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Config\machine.config' is denied.

Source Error: 


[No relevant source lines]


Source File: C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Config\machine.config    Line: 0 


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272

Does anyone know what's going on?

Answer 1

Check that the account which the application pool is running under has access to

'C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Config\machine.config'

The permissions may have changed if the user account was updated or .NET was updated