The answer does not address the question. This has nothing to do with finding the Operating System in the dashboard.
The issue is that OCS continues to report software that was previously removed. For example, install a piece of software and have the Mac check-in to the OCS server and report it's applications. Then, remove the application from the Mac and have it check in again. The result: the application is still reported as installed when it's not installed.
Where is OCS discovering that data if not directly from the Applications folder?