Download Microsoft.ace.oledb.12.0 Provider For Both 64-bit [new] 〈99% EXCLUSIVE〉

To download and install the Microsoft.ACE.OLEDB.12.0 provider for 64-bit systems, you must download the Microsoft Access Database Engine 2010 Redistributable. While newer versions like 2016 exist, the "12.0" provider specifically refers to the 2010 engine components.

Comprehensive Guide: Installing Microsoft.ACE.OLEDB.12.0 (64-bit) 1. Locate the Official Download

You can find the official installers for both 32-bit and 64-bit versions through the Microsoft Access Database Engine 2010 Redistributable page. 64-bit Version: Select AccessDatabaseEngine_X64.exe.

32-bit Version: Select AccessDatabaseEngine.exe (if also required for legacy apps). 2. Standard 64-bit Installation

If you only need the 64-bit driver and do not have a 32-bit version of Microsoft Office installed: Download link for Microsoft.ACE.OLEDB.12.0

You can install the Microsoft Access Database Engine Redistributable which provides the Microsoft.ACE.OLEDB.12.0 provider for both 32-bit and 64-bit.

Links to download:

Notes:

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To download and install the Microsoft.ACE.OLEDB.12.0 provider for you must download the Microsoft Access Database Engine Redistributable

. While officially Microsoft recommends matching your Office bitness, you can use a "passive" installation workaround to have both 32-bit and 64-bit versions coexist on the same machine. Laserfiche 1. Official Download Links

You can find the installers for the 12.0 provider through the Microsoft Access Database Engine 2010 or 2016 redistributables: Access Database Engine 2016 (Recommended) : Available at the Microsoft Download Center AccessDatabaseEngine_X64.exe for the 64-bit version. Access Database Engine 2010 : Available at Microsoft Download Center 2. How to Install Both 32-bit and 64-bit

By default, Windows prevents installing 64-bit drivers if 32-bit Office components are present. To bypass this and install both, follow these steps: SQLServerCentral Download the installer AccessDatabaseEngine_X64.exe ) to a known folder like C:\Downloads Open Command Prompt as an Administrator. Run with the /passive switch : Type the full path to the installer followed by and hit Enter. C:\Downloads\AccessDatabaseEngine_X64.exe /passive Registry Cleanup (If Needed) : If you still face issues, you may need to delete the registry value under

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Common\FilesPaths Laserfiche 3. Verification To ensure the provider is correctly registered: ODBC Administrator : Open the ODBC Data Source Administrator (64-bit) and check the tab for "Microsoft Access Driver". PowerShell

: Run the following command in a 64-bit PowerShell window to see active providers: powershell (New-Object system.

.oledb.oledbenumerator).GetElements() | select SOURCES_NAME, SOURCES_DESCRIPTION Use code with caution. Copied to clipboard Stack Overflow

To download the Microsoft.ACE.OLEDB.12.0 provider for a 64-bit system, you need the Microsoft Access Database Engine 2010 Redistributable. While modern versions like 2016 exist, the "12.0" provider name specifically refers to the 2010 engine components. 📥 Official Download Links

Microsoft has moved many legacy downloads, but the installers are still available through the Microsoft Download Center. 64-bit Version: AccessDatabaseEngine_X64.exe 32-bit Version: AccessDatabaseEngine.exe 🛠️ How to Install Both (Side-by-Side) download microsoft.ace.oledb.12.0 provider for both 64-bit

By default, Windows prevents installing 64-bit drivers if 32-bit Office (or vice versa) is present. You can bypass this using a "quiet" installation command. 1. Download the Installer

Get the version that is missing from your system (e.g., if you have 32-bit Office, download the 64-bit engine). 2. Run via Command Prompt Press Win + R, type cmd, and press Enter. Navigate to your download folder.

Run the installer with the /quiet or /passive switch:AccessDatabaseEngine_X64.exe /quiet 3. Fix Registry Conflicts

To stop Office from "reconfiguring" every time you open Excel or Access, you must delete a specific registry key: Open Regedit.

Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Common\FilesPaths Delete the value named mso.dll. 🔍 Verifying the Installation

To confirm the provider is registered correctly on your machine: How to Check if ACE OLEDB Driver is Installed SQL Server

For developers and data analysts, the Microsoft.ACE.OLEDB.12.0 provider is essential for connecting non-Microsoft applications to Office files like Access (.accdb) and Excel (.xlsx). However, installing both the 64-bit and 32-bit versions on the same machine often triggers an error stating that you cannot have both versions of the database engine installed.

This guide details how to download and successfully install both bitnesses for seamless data processing. Step 1: Download the Microsoft Access Database Engine

The Microsoft Access Database Engine 2016 Redistributable is the standard for the 12.0 provider. Official Download: Visit the Microsoft Download Center. Select Files: Click "Download" and select both: AccessDatabaseEngine_X64.exe (64-bit) AccessDatabaseEngine.exe (32-bit/x86). Step 2: Install the First Version (Standard)

Run the installer that matches your primary application's bitness (e.g., if you use 64-bit SQL Server, install the 64-bit version first). Follow the on-screen prompts to complete the installation.

You can download the Microsoft.ACE.OLEDB.12.0 provider by installing the Microsoft Access Database Engine 2016 Redistributable

. While older 2010 versions are out of support, the 2016 redistributable remains the standard official source for this specific provider name. Microsoft Learn Official Download Links To get the 64-bit provider, download the file from the official Microsoft Download Center 64-bit Version: AccessDatabaseEngine_X64.exe during the download prompt. 32-bit Version: AccessDatabaseEngine.exe if you need to support 32-bit applications. Microsoft Learn Installation Steps Remove Old Versions

: Uninstall any previous versions of the Access Database Engine via the Control Panel to avoid conflicts. Run Installer : Double-click the downloaded and follow the on-screen prompts. Command Line (Optional)

: If you need to install both 32-bit and 64-bit versions on the same machine (which is normally blocked), you can run the installer through the command prompt with the AccessDatabaseEngine_X64.exe /passive Connection String Example

After installation, developers can use the following provider argument in their connection strings:

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\myFolder\myAccessFile.accdb;

: Support for the 2016 Redistributable officially ended on October 14, 2025. Microsoft now recommends the Microsoft 365 Access Runtime To download and install the Microsoft

for newer environments, though it may require updating connection strings to OLEDB.16.0 for a specific file type, like Microsoft Access Database Engine 2016 Redistributable

To obtain the Microsoft.ACE.OLEDB.12.0 provider for a system, you must download and install the Microsoft Access Database Engine Redistributable

. While newer versions (like 2016) exist, the specific "12.0" provider is most reliably found in the redistributables. Data Savvy Download Links Access Database Engine 2016 (Recommended) : Available at the Microsoft Download Center accessdatabaseengine_X64.exe for the 64-bit version. Microsoft 365 Access Runtime : A modern alternative available through the Microsoft Support Page . It is downward compatible with OLEDB.12.0 connection strings. Review: Microsoft.ACE.OLEDB.12.0 (64-bit) Microsoft.ACE.OLEDB.12.0

provider is the industry-standard bridge for connecting applications to Office data formats, specifically (Access) and

(Excel). Below is an in-depth review of its performance, utility, and common implementation challenges. 1. Connectivity and Versatility This provider is essential for developers using SQL Server (SSIS) , or custom .NET applications

to read from modern Excel or Access files. Unlike the older "Jet" engine, which was strictly 32-bit, the ACE provider supports the 64-bit architecture required by modern servers and enterprise software. SQLServerCentral Key Strength

: It handles complex Excel data types and large Access databases that the legacy Jet.OLEDB.4.0 cannot process. 2. Installation Hurdles ("The Bitness Conflict") Download and install Microsoft 365 Access Runtime

Conclusion: Your Download Roadmap

Let’s summarize exactly what you came here for:

| If you need... | Download this file | Install using... | | --- | --- | --- | | Only 32-bit provider | AccessDatabaseEngine.exe (32-bit) | Double-click, normal install | | Only 64-bit provider | AccessDatabaseEngine_x64.exe (64-bit) | Double-click, normal install | | Both providers on one machine (Holy Grail) | Download both EXEs from Microsoft | 1. Install 64-bit normally
2. Install 32-bit with AccessDatabaseEngine.exe /passive |

Final recommendation: If you absolutely must have both architectures on a production server, run the 64-bit installer first with /quiet, then the 32-bit installer with /passive. Test thoroughly with your ETL processes.

Now that you have successfully downloaded and installed the Microsoft.ACE.OLEDB.12.0 provider for both 64-bit and 32-bit environments, that frustrating "provider not registered" error should be a thing of the past.

Next step: Try connecting to your first Excel file using the connection string in SSMS or your preferred IDE. Good luck

Microsoft.ACE.OLEDB.12.0 Provider: A Detailed Review

The Microsoft.ACE.OLEDB.12.0 provider is a 64-bit OLE DB provider that allows .NET applications to connect to Microsoft Office file formats, such as Access databases (.mdb, .accdb), Excel spreadsheets (.xls, .xlsx), and Text files. In this review, we'll cover the features, installation, and usage of this provider.

Key Features

Installation

To use the Microsoft.ACE.OLEDB.12.0 provider, you'll need to download and install it on your system. Here are the steps: 32-bit installer: AccessDatabaseEngine

  1. Download the provider: You can download the Microsoft.ACE.OLEDB.12.0 provider from the Microsoft website. Make sure to select the 64-bit version.
  2. Run the installer: Run the downloaded installer (e.g., AccessDatabaseEngine.exe) and follow the installation prompts.
  3. Restart your system: After installation, restart your system to ensure the provider is properly registered.

Usage

To use the Microsoft.ACE.OLEDB.12.0 provider in your .NET application, follow these steps:

  1. Add a reference to the provider: In your .NET project, add a reference to the Microsoft.ACE.OLEDB.12.0 provider.
  2. Create a connection string: Create a connection string that specifies the provider and the file you want to access. For example:
string connectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Path\To\Your\Database.accdb;";
  1. Use ADO.NET to access the data: Use ADO.NET classes, such as OleDbConnection, OleDbCommand, and OleDbDataReader, to access the data in the file.

Example Code

Here's an example C# code snippet that demonstrates how to use the Microsoft.ACE.OLEDB.12.0 provider to read data from an Access database:

using System;
using System.Data;
using System.Data.OleDb;
class Program
static void Main(string[] args)
string connectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Path\To\Your\Database.accdb;";
        string query = "SELECT * FROM YourTable";
using (OleDbConnection connection = new OleDbConnection(connectionString))
connection.Open();
using (OleDbCommand command = new OleDbCommand(query, connection))
using (OleDbDataReader reader = command.ExecuteReader())
while (reader.Read())
Console.WriteLine(reader["YourColumn"].ToString());

Conclusion

The Microsoft.ACE.OLEDB.12.0 provider is a reliable and widely-used OLE DB provider that allows .NET applications to access various file formats, including Microsoft Office files. With its 64-bit support and easy-to-use interface, this provider is a great choice for .NET developers who need to work with these file formats. However, keep in mind that this provider is not actively developed or supported by Microsoft, and you may encounter issues with newer versions of Windows or .NET.

Pros

Cons

Alternatives

If you're looking for alternative providers, you may consider:

Error 1: "The provider is not registered" after installation

Cause: Your application’s architecture does not match the installed provider. Fix:

Introduction: The "Data Connectivity Dilemma"

If you have ever tried to read an Excel spreadsheet (.xlsx) or an Access database (.accdb) using a script or application—particularly in a 64-bit environment—you have likely encountered the infamous error:

"The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine."

This error stops data analysts, SQL developers, and system administrators dead in their tracks. The root cause? A mismatch between your application’s bitness (32-bit vs. 64-bit) and the installed OLEDB provider.

In this 2,500+ word guide, you will learn exactly how to download Microsoft.ACE.OLEDB.12.0 provider for both 64-bit and 32-bit systems, understand which version you actually need, and troubleshoot common installation failures.

Verification (after installation)

Check your registry for the provider:

Alternatively, test via PowerShell:

# Check 64-bit provider
Get-OleDbProvider -Name "*ACE*"

Chapter 3: Where to Download Microsoft.ACE.OLEDB.12.0 (Officially)


Microsoft does not offer the provider as a standalone DLL. Instead, it is part of the Microsoft Access Database Engine Redistributable.


Chapter 5: How to Test if the Provider is Correctly Installed


You can test using a simple PowerShell script.


3. Legacy Version (Pure ACE.OLEDB.12.0 – Office 2007)