Jet compact utility is available in Download Center - Microsoft 365 AppsModerate: Requires basic macro, coding, and interoperability skills. This article applies only to a Microsoft Access database (.mdb). Summary The Jet compact utility, JETCOMP.exe, is a stand-alone utility that compacts databases created with Microsoft Jet database engine 3.x and 4.x. This utility may be run in conjunction with Microsoft Jet database engine 3.x and 4.x for recovering corrupted data
