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

The "Microsoft.ACE.OLEDB.12.0" provider is a database connection manager that allows access to various databases, including Microsoft SQL Server, Oracle, and IBM DB2. If the provider is not registered on the local machine, it may be due to a missing or corrupted database redistribution package, or a problem with the Windows registry. You can try reinstalling the package or repairing the registry to resolve the issue. 

If you have built your project under x86 platform, then in order to resolve you issue you should install the following packages on your machine:

In order to use the 'Microsoft.ACE.OLEDB.12.0' provider you must install the Microsoft Access Database Engine 2010 Redistributable first, this installation is available at: http://www.microsoft.com/download/en/details.aspx?id=13255 .

After the installation has complete, try running you application

Depending on the app(32/64bit) using the connection you could just install

• Access 2007 engines (only 32bit)
• Access 2010 (32&64bit)
• Access 2013 full runtime (32&64bit)
• Access 2016 runtime
• Access 2019 runtime

Hope this helps!

Can't locate Microsoft.Office.Interop.Word

Microsoft Office primary interop assemblies (PIAs) are used for development purpose when you are working with Word or Excel.

Usually Microsoft Interop libraries are installed automatically at the time of Microsoft Office in development computer. However, in some cases you might need to install PIAs separately.

Download : Microsoft Office 2010: Primary Interop Assemblies Redistributable

Microsoft Office update #KB3114409

If your system is currently running Microsoft Office 32 Bit version, you may have an issue with Outlook starting in Safe Mode after the updates have been applied.

Microsoft update KB3114409 should be removed if you are experiencing this behavior.

64 Bit Office applications are not affected by this update.

How to Creating an HTML Signature in Outlook 2007

Here is the workaround to create HTML signatures for Outlook 2007. When you create a signature in Outlook 2007 it creates 3 separate files (.htm, .txt and .rtf). To create a more custom signature you can write it in HTML – this is especially useful for when dealing with graphics and advanced formatting.

How to create signature in Outlook 2007:

1. In Outlook go to Tools > Options and the Mail Format tab.
2. Click the Signatures button.
3. Click the New button.
4. Give your signature a name like ‘MySignature′
5. Click on OK

Outlook doesn’t require any content to be added and will create the 3 individual files. Click OK and close Outlook

How to Locate your signature folder: Copy one of the following lines depending on what your operating system is.

• Windows 7: %userprofile%\AppData\Roaming\Microsoft\Signatures
• Vista: %userprofile%\AppData\Roaming\Microsoft\Signatures
• XP-2003: %userprofile%\Application Data\Microsoft\Signatures

Click on Start and then Run – paste the line you copied into the Run box and hit Enter

You should see 3 files created for your "MySignature” file (in .htm, .txt and .rtf formats). If you can’t see the file extensions, go to Tools / Folder Options / View and untick ‘Hide extensions for known file types’, or right-click the file and select ‘Properties’ to determine the file type.

Replace the HTML file created by Outlook:
Take your HTML signature file and use it to replace the .htm file in your signature folder (i.e. save it as in this system folder, using the same filename as the .htm signature file created by Outlook ).

To start using your new signature:
Restart Outlook.

It worked for me on Outlook 2007 and Outlook 2010. Hope this is useful for you