This application is using the HMAC-SHA-384 or HMAC-SHA-512 keyed hash algorithm. The implementation of these algorithms were ...

This application is using the HMAC-SHA-384 or HMAC-SHA-512 keyed hash algorithm.  The implementation of these algorithms were updated in service pack 1 of .NET Framework 2.0 and by default do not produce results consistent with the unserviced versions of the classes. For more information about the changes to the algorithms and how to disable this warning message please see the release notes for service pack 1.