Enterprise Developer enables you to develop applications that were created using Net Express. You can move your existing applications to Enterprise Developer and continue to develop them in the new environment.
Once you are familiar with the IDE, you can import your existing code into Enterprise Developer.
You can continue to maintain your applications in Enterprise Developer as before. You can employ new technologies such as .NET, Web Applications and WCF Services to modernize the applications over time. See the following resources for help on getting started with .NET COBOL programming: