Native applications developed using a COBOL development system require a COBOL run-time server to provide the necessary run-time system and support.
Server Enterprise Edition is your COBOL run-time server. It is supplied as part of Studio Enterprise Edition, which is your COBOL development system. Server Enterprise Edition is also supplied separately.
End users need to install COBOL run-time licenses before they can run applications that use the COBOL run-time system.
You need to:
Studio Enterprise Edition for Visual Studio 2010 and Studio Enterprise Edition for Visual Studio 2012 each target a different version of the COBOL run-time system - Server Enterprise Edition and COBOL Server 2012, respectively.
Ensure that after you've edited the project in the preferred version of Visual Studio, you compile your source code in that version of Studio Enterprise Edition which targets the version of the COBOL run-time in which you want your applications to run.
For example, if you build your application using Studio Enterprise Edition for Visual Studio 2010 you cannot deploy the target files to COBOL Server 2012; you must use Server Enterprise Edition.