Start using distributed caching in your existing Enterprise Library Caching Application Block (CAB) based applications without any code change. Download NCache from http://www.alachisoft.com/rp.php?dest=/download.html Enterprise Library 2.0 provides a stand-alone caching block. However, if your .NET application is running in a server farm then your cache must be distributed in order to avoid data integrity problems in your cache. NCache provides a distributed cache for Caching Application Block by implementing IBackingStore interface. You can plug-in NCache to your existing CAB based application without any code change. Just change your "app.config" file to add NCache to your "" and you're all set to start using distributed caching. Read more about NCache http://www.alachisoft.com/rp.php?dest=/ncache/index.html