IISAM Support

The 3.5 OLE DB Provider for Microsoft Jet did not expose the ability to connect to Installable ISAMs. This prevented clients from using all of the functionality in the Jet engine. The version 4.0 provider supports all of the IISAMs that ship with Jet 4.0. Wherever possible, metadata will reflect the limitations and capabilities of each particular ISAM. For example, the list of supported storage types that are returned in the PROVIDER_TYPES schema rowset will be different for version 3.5 format .mdb files and version 4.0 format .mdb files, because the Jet 4.0 storage engine has added new types that won't be understood by previous versions of Jet.