QUESTION I have tested a DLL function in a VisualAge application and now I cannot replace the DLL file. It's in use. How can I get VisualAge to turn it loose? ANSWER I will assume that you have an application where you dropped the Cobol external function part and set it up to point to some DLL. After some testing you decided you wanted to replace the DLL with an updated version. You brought down the application and the composition editor window so the Cobol external function part would go away. But, alas, the DLL is still open so you can't replace it. Here is a simple way. After you make sure all the windows that might reference your DLL are gone execute the following from the Transcript: (PlatformLibrary logicalName: 'yourdll') close