Member Avatar for kheijhei

can someone help me connecting ms access 2010 to visual basic 2008, this is the error of my program every time I run it "The 'Microsoft.ACE.Oledb.12.0' provider is not registered on the local machine."

here is my code for the provider

Imports System
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
Inherits System.Windows.Forms.Form
Dim strconnection = "Provider = Microsoft.ACE.Oledb.12.0;Data Source = C:\Users\Malvin\Documents\Visual Studio 2008\WindowsApplication1\IDsystem.accdb;"


'i create the database on ms access 2007 and now i upgrade my access 2007 to 2010, then the error shows.

thanks in advance..

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Note for : the symptom shown in the thread is almost always not an Access file problem but a bitness mismatch — the running process (AnyCPU/64‑bit) cannot load the installed ACE OLEDB driver (which is often 32‑bit). was right to point at the project/platform setting; forcing the app to run with the same bitness as the provider fixes the error in the majority of cases. See community experience and Microsoft guidance. (stackoverflow.com)

Practical, low‑risk fix (recommended for VS2008 VB.NET projects): compile the app as 32‑bit (x86) when the machine has the 32‑bit ACE driver installed. In VS2008 for VB projects: Project → Properties → Compile → Advanced Compile Options → Target CPU → select x86 (repeat for Debug and Release or set via Configuration Manager). For C# projects use Build → Platform target or add an x86 platform. If a 64‑bit ACE provider is installed, match the project to x64 instead. (stackoverflow.com)

If the ACE provider is missing on the machine, install the Microsoft Access Database Engine redistributable (pick x86 or x64 to match the app). The current Microsoft download is the Access Database Engine 2016 Redistributable; install the matching architecture and then run the app/repair the project platform. Installing the opposite bitness when Office is present can be blocked; some people use the installer’s passive mode (/passive) to work around that, but that has implications — matching app and provider bitness is the cleaner solution. Access Database Engine 2016 Redistributable. (microsoft.com)

Quick verification and tips: check for ACEOLEDB.DLL under the Common Files path for Office (Program Files vs Program Files (x86)) or create a simple .udl file to list installed OLE DB providers. If deploying to servers or using IIS/SSRS/SSIS, make sure the host process (IIS app pool, SQL tools, etc.) matches the provider bitness. For Excel-only workflows, consider libraries that avoid ACE (OpenXML/ClosedXML) to remove the runtime dependency. (stackoverflow.com)

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Member Avatar for AndyPants

umm... I would try setting the target processor higher

Member Avatar for AndyPants

infact that fixed the problem when I had it

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