Machine.config 'denied

Question

My application runs on windows server 2000 and IIS 6 . Until this morning, the application worked fine. But now I get 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 is going on?

Answer 1

Verify that the account in which the application pool is running has access to

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

Permissions are subject to change if the user account has been updated or .NET has been updated.