error with enterprise library

[Vivek Sharma]

Hi,

I tried using enterprise library. When I build an application I got this
error.

The application attempted to perform an operation not allowed by the
security policy. To grant this application the required permission please
contact your system administrator or change the application's trust level in
the configuration file.

Exception Details: System.Security.SecurityException: Requested registry
access is not allowed.


Please help.