[u]How do I overcome this error:</u>

Access to the path "C:\wrox\ThePhileVB\Config\AdRotator.Xml" is denied.

I have changed all of the config file to modify the filestream to

Dim fs as New FileStream(fileName, FileMode.Open, FileAccess.Read)

but I am still getting this error.

Give network permissions for that file to access.Check for the permissions given and provide read access if it is not.YOu can set the permissions by right clicking the file and choosing properties -- security tab.