Native COBOL compared with managed COBOL Native COBOL and managed COBOL differ in how they compile and how the run-time management services, such as security, threading and memory management are provided.
Multiple user COBOL applications in .NET
In a multiple user environment, COBOL applications must use multiple run units, with each instance of the application running in its own run unit.
Moving Native COBOL Applications to Managed COBOL
Managed code provides features that enable you to extend and modernize your existing procedural COBOL applications without having to rewrite them.