MDAC 2.5 SDK - OLE DB Providers
OLE DB Provider for Microsoft Jet


 

Compacting Jet Databases

Previously, there was no way through the Jet 3.5 OLE DB Provider to compact Jet databases. There is also no official mechanism in OLE DB to do maintenance work on databases at this time. The 4.0 provider now exposes a provider-specific interface called IJetCompact that can be used to compact databases and manage compaction-related properties, such as database encryption and database repair.