When AW builds a database of conjugated verbs (the first time he finds a "anyLanguage_verbs.txt" without its corresponding "anyLanguage_verbs.db" in the "resources" folder), the informing window neither is permanently on top (during the database building phase) nor blocks the application, which makes possible for the user to quit the application leaving the database in a non clear status. The emerging window informing of the process should block the application until it terminates.