Remote Debugging

Remote debugging is not supported for .NET managed COBOL applications in any edition of Visual Studio 2012 or 2013.
Remote debugging does not work for managed code if you specify in the project properties to start a remote application via a network drive (for example, remote debug machine = \\servername). This will trigger Code Access Security exceptions in the COBOL run-time system.
Instead, you can use Debug > Attach to Process and select the machine name in the dialog box. This allows you to attach to an already running process on the remote machine. The process must be running either in a loop or by manually adding a CBL_DEBUGBREAK in order to allow time to attach before the program terminates.