Other Secunia PSI 'Administrivia'
Secunia PSI uses Adobe Flash to manage its in-program displays, and working with Flash updates gets interesting from time to time. In the previous version of PSI, you actually had to close the program to enable it to remove the previous Flash .ocx file (which was otherwise locked for runtime use by this very program) to clean up after an update.
The latest version of PSI fixes this problem, although you'll sometimes encounter the same kind of "zombie installation" with previous .ocx file versions as previously depicted for Chrome installation directories. In some cases, such listings are not spurious. This situation is easy to detect; right-click the item and select the Open Folder entry that appears in the resulting pop-up menu. If a Windows Explorer pane showing the reported item appears, it definitely exists! You'll probably want to delete it.