Access 64 bit odbc driver download

Some years ago, before Microsoft Office , life was – in some sense – easier for developers: Office was bit, period. In our days, since the release of Microsoft Office , things are a bit more complicated, as users can now have a machine with a bit native version of Office installed as well. This means, for instance, that a bit application using an ODBC driver to connect to an Access database might not work anymore, since the bit ODBC driver might not exist on a machine with a bit Office installation. In such a case, even though the user has a valid Office installation on his or her machine, the application may still display an error regarding the installation or the registration of the proper drivers on the local machine.

In order to address such problems, Microsoft released a redistributable named Microsoft Access Database Engine Redistributable. This redistributable provides a bit or a bit version of the Microsoft Access Database Engine, which can be downloaded from the Microsoft Download Center:

Download drivers

So, for example, if you have a bit application using a bit ODBC driver on a machine with a bit installation of Office , you will need to install the bit version of the Microsoft Access Database Engine as well.

Please note that launching the installation of a Microsoft Access Database Engine in the usual way, on a machine with an Office installation architecture different from the current one (e.g. bit on bit), may cause the installation to fail. To have it run properly, you need to launch it from a command line with the argument specified:

• To install the Microsoft Access Database Engine bit on a machine running Office bit:

• To install the Microsoft Access Database Engine bit on a machine running Office bit:

In order to use the new driver from your AIMMS project for connecting to an Access database, you need to adjust the Data Source Name (.dsn) file associated with your Access database. Typically that .dsn file contains something like:

This should be changed to look like (where the changes are highlighted):

In order to use the new driver from your AIMMS project for reading CSV files by using ODBC, you need to adjust the DSN file associated with your (sub-) folder containing the CSV files. Typically that DSN file contains something like:

In this example, Data is the subfolder of your AIMMS Project directory containing the CSV files.

For the new driver this should be changed to look like (where the changes are highlighted):

Please note that the above is applicable to Office as well as to Office In case of Office , the installation steps above should suffice. However, when Office bit is natively installed and the user tries to install the bit version of the Microsoft Access Database Engine, he or she might still get an error regarding the registration of the proper drivers on the local machine. Should such a situation occur, please try the following workaround:

• Check the bit registry key before installing the bit version of the Microsoft Access Database Engine redistributable.

• If it does not contain the registry value, then you will need to rename or delete the value after installing the bit version of the Microsoft Access Database Engine redistributable on a system with a bit version of MS Office installed.

• Use the command line parameter to install the redistributable, e.g.

• Delete or rename the registry value, which contains the path to the bit version of (and should not be used by bit MS Office versions).

• Now you can start a bit MS Office application without the “re-configuring” issue.

Note that the registry value will already be present if a bit version of MS Office is installed. In this case the value should not be deleted or renamed.