Use the built-in Compact and Repair Database command located under the Database Tools tab in Microsoft Access. jetcomp.exe does not natively support the .accdb format.
Does not require Microsoft Access to be installed, only the Jet engine components, making it ideal for fixing broken back-ends.
JETCOMP.exe is a standalone utility from Microsoft used to compact and repair corrupted Microsoft Jet (Access) database files. While it is a legacy tool, it remains highly valued because it can often recover databases that the built-in Microsoft Access "Compact and Repair" utility cannot. Spiceworks Community Where to Download JETCOMP.exe jetcomp.exe download
How to obtain it safely (recommended approach)
is a standalone, legacy command-line utility originally developed by Microsoft to compact and repair corrupted or oversized Microsoft Jet database engine (3.x and 4.x) files, primarily .mdb files used by older versions of Microsoft Access. While the standard Compact & Repair tool within Access works for general maintenance, JETCOMP.exe is designed to recover databases that are too severely corrupted for the built-in tool. Key Features of JETCOMP.exe Use the built-in Compact and Repair Database command
is a standalone database repair utility developed by Microsoft. It fixes corrupted databases built on the Microsoft Jet database engine. This engine powers .mdb and .accdb files in Microsoft Access.
Instead of hunting for jetcomp.exe , use modern methods: JETCOMP
No. jetcomp.exe is for the Jet engine ( .mdb files). It does not work with the newer ACE engine ( .accdb ). For .accdb files, you must use Microsoft Access or the CompactRepair utility from the Office suite.