security, access right Issue in Asp.Net application

I m using Windows7 64 bit, VS2008. I have developed a web application. Due to some security, access right reason, my web application is unable to loaded and displaying properly.
So how can i give the access right to my application folder in windows 7.
Following code of web.config file.
<authentication mode="Forms">
<forms defaultUrl="Default.aspx" loginUrl="Login.aspx" requireSSL="false" cookieless="UseCookies" timeout="30">
forms>
authentication>
<authorization>

<allow users="*" />
authorization>