Beginning with Windows 2000 and up through Windows 7, the Jet OLEDB 4.0 driver was included as part of the . You never "downloaded" Jet 4.0 separately; you installed Windows.
You Jet OLEDB 4.0 as a standalone installer from Microsoft anymore. However, this guide explains what it is, where it still exists, and the official modern replacements. download microsoft jet oledb 4.0
If you have landed on this page searching for the phrase you are likely a developer, a database administrator, or an IT professional trying to connect an application to a legacy Microsoft Access database ( .mdb ) or an Excel spreadsheet. You might be wrestling with error messages like "The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine" or "Unrecognized database format." Beginning with Windows 2000 and up through Windows
Users often see this error on 64-bit machines because there is no 64-bit version However, this guide explains what it is, where