How to fix Microsoft.ACE.OLEDB.12.0 provider is not registered on the local machine

Rhys Mckinnon 31

After trying to follow several solutions online none seem to be working. I'm using 64bit Microsoft access and 2019 visual studio and have already installed the engine from https://www.microsoft.com/en-au/download/details.aspx?id=13255. I've tried running visual studio on x86 and any cpu. Stumped on where to go next

Castorix31 83,206 Reputation points

2021-03-03T07:32:57.253+00:00

...several solutions

Which solutions ?

(BTW, the 2016 version is Microsoft Access Database Engine 2016 Redistributable )
(accessdatabaseengine_X64.exe)
Daniel Zhang-MSFT 9,621 Reputation points

2021-03-12T08:16:48.093+00:00

Hi @Rhys Mckinnon ,
I suggest you can try to use 32bit Microsoft access to check.
Regarding this problem, there are some solutions and suggestions have been provided in this thread.
Best Regards,
Daniel Zhang
Oli sicard 1 Reputation point

2022-08-26T13:13:10.773+00:00

Has this been resolved?

I am having the same problem, I have Office 2016, 64 version. I've downloaded the redistributables, and still getting not registered problem.

I have went into settings ticked off prefer 32-bit, tried anyCPU, 64, x86. Nothing works.!
Ashkan Khalili 1 Reputation point

2023-01-05T10:32:36.35+00:00

To solve this error try to install Access Database Engine 12, and you will be find :)
incase this didnt solve the problem, Install access Database engine 14.
Randall Edick 30 Reputation points

2023-04-03T14:50:26.0533333+00:00

I'm using the Community Edition of VS2022, built a winforms app on .NET.framework 4.7.2, I've installed the AccessDatabaseEngine_x64. I see it installed in the registry, but I'm still getting the error.
Raymond Larkin 1 Reputation point

2023-10-17T20:21:21.08+00:00

I have same scenario for 64 bit version. The 32 bit version of the engine will not install because Access 64 bit is installed. However, the 32 bit version will install from an Inno setup app and run fine. I have to find a solution for exposing C# methods to unmanaged code for 64 bit before I can compile the libraries for x64.
Jones, Ron@CSD 0 Reputation points

2023-10-19T16:17:44.08+00:00

I'm using the Community Edition of VS2022, updating a winforms app on .NET.framework 4.5, I installed the AccessDatabaseEngine_x64. I still got the error and then changed my target build to 64 bit and error was gone..

8 answers

Ashwini Kumar Vijayvargia 5 Reputation points

2023-04-19T03:32:35.0766667+00:00

I was facing the similar problem, in one project, while in other project running on the same machine working fine with the same connection string. Changing 'Target CPU', didn't work. But I removed the check 'Prefer 32 Bit' just below this 'Target CPU' option, and it worked. I'm using VS2022 Community Edition.
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1 person found this answer helpful.
Tom Mann 0 Reputation points

2024-02-16T21:53:07.3+00:00

Thanks for that. After trying everything else, unchecking the Prefer 32 Bit checkbox worked.
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Max Santeramo 21 Reputation points

2022-06-02T15:16:55.177+00:00

I run into the same problem but nothing seems to work. I run windows 10 and Visual Studio 2022. All is 32bits including office but no matter what I always get hte bloody OLED12 service provider not registered issue. I also tried the previous solution but there's no way, it doesn't work. Also if I try to install the 64 bit version of AccessDatabaseEngine is raises an error due to the different bitness. What can I do? Thanks for your support.
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Amir Baymuratov 1 Reputation point

2022-06-04T10:15:28.393+00:00

I have the same problem and can't solve it

Pascal Muders 1 Reputation point

2022-07-01T13:51:40.317+00:00

I had some similar problems with acedao (class nor reg).

I found a way that worked for me. No access runtime needed.

// died not work
/* m_hr = CoCreateInstance(
__uuidof(DAO::DBEngine),
NULL,
CLSCTX_ALL,
IID_IDispatch,
(LPVOID*)&theApp.m_pEngine);
/
// worked
m_hr = CoCreateInstance(
__uuidof(DAO::DBEngine),
` nullptr,
CLSCTX_ALL,
__uuidof(DAO::_DBEngine),
reinterpret_cast<LPVOID>(&theApp.m_pEngine));

Mich 0 Reputation points

2024-04-19T17:46:53.06+00:00

I installed AccessRuntime_x86_en-us.exe and got it to work.
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How to fix Microsoft.ACE.OLEDB.12.0 provider is not registered on the local machine

8 answers