As a convenience measure, ContactsLaw prompts the user to retry or defer the operation in such cases, rather than simply cancelling out. Once you have closed the application in which the file is open, you can click 'Try again' to continue the operation. Alternatively, ContactsLaw can instruct the operating system to delete a particular file automatically the next time it starts up ('Delete later'). This prompt also includes a feature to identify which application(s) may be locking the file (if this is not apparent at the time).
To avoid this prompt, always ensure that you close other applications after you have finished reading or editing documents. If you continually experience problems related to file-locking, you can download an application called
Process Explorer, which may assist in locating the source of the problem.