Error on execution of asp.net

Dear Friends I am encountering this problem and i am sick of it. i have done all that was possible but could not succeedto rrectify it. the problem is that whenever i try to execute or create an asp.net application it shows me the following error
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 23: "Forms", "Passport" and "None"
Line 24: -->
Line 25: <authentication mode="Windows" />
Line 26:
Line 27:


i tried to make changes but alas
PLEASE HELP ME SOLVE
I have made changes of admin rights and sharing stuff on iis

It's an error in your Web.Config or Machine.Config file. The Web.Config should be located in the root directory of your application and the Machine.Config in the .net framework directory. Post them up and we'll see what is wrong.

Sounds to me like you are trying to implement windows authentication within the machine.config file though.

DJ