[InvalidOperationException: The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.] System.Data.OleDb.OleDbServicesWrapper.GetDataSource. Here Mudassar Ahmed Khan has explained how to resolve the error The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine. This error occurs when. If you have 32 bit Office 2010 & 64 bit Windows, install the Access Database Engine 2007 or 2010. Then install the Access Database Engine x64 with the. There are a number of reasons why you might get The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine error when attempting to. Were you able to resolve this for the Migration Wizard? I'm getting the same thing: the 'microsoft.ace.oledb.12.0' provider is not registered on the local machine check whether u add this Microsoft.ACE.OLEDB.12.0.dll in project or not. by add references This download will install a set of components that facilitate the transfer of data between existing Microsoft Office files such as Microsoft Office Access 2010. I'm trying to get data from an Excel file on a button click event. My connection string is: string connString = Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C. In VC Express, this property is missing, but you can still create an x86 configuration if you know where to look. It looks like a long list of steps, but once you. How do I know if I've got the Microsoft.ACE.OLEDB.12.0 provider installed in 64-bit rather than 32-bit mode please?.