Http 500 error while accessing aspx page in IIS

i added a virtual directory in IIs default website(port:8080).when i browse any page it is giving HTTP 500 - Internal server error
Internet Explorer


TECHNOLOGY ASP.NET
LANGUAGE : C#.NET
SERVER :IIS
BROWSER:IE

Open IE, go to Tools --> Internet Options --> Advanced Tab --> Uncheck "Show friendly HTTP error messages".

Then post the real error message.