Failed to start monitoring changes to web.config because access is denied.

I developed a single plain text webPage with VB2005 I selected "Local IIS" , location HTTP and option creat a "new webapplication" System: XP IIS 5.1 Microsoft .NET Framework Version:2.0.50727.42 ASP.NET Version:2.0.50727.42 when I try to run page from IIS folder the following error shows up: Server Error in '/Web1' Application. 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: Failed to start monitoring changes to 'c:\inetpub\wwwroot\web.config' because access is denied. Source Error: [No relevant source lines] Source File: c:\inetpub\wwwroot\web.config Line: 0 Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42