I got the same message as above (see listing below) but I'm using VS 2005 and the VS Development server. Is there a way fix this problem in the development web server?

TIA,

amorphous

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Server Error in '/Chapter03' 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: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.

Source Error:

Line 39: Set forms authentication and define the login page
Line 40: -->
Line 41: <authentication mode="Forms">
Line 42: <forms loginUrl="Default.aspx"></forms>
Line 43: </authentication>
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