Data Source Name Not Found and No Default Driver

This error message occurs when using an EnviroInsite database and not an EQuIS database. It is likely caused by one of two things.

1.Microsoft Office is not installed on the computer. In which case, install the MS Access Database Engine 2010 Redistributable. Available at: http://www.microsoft.com/en-us/download/details.aspx?id=13255

2.The 64-bit version of EnviroInsite is installed, but the 32-bit version of Microsoft Office is installed. In this case, uninstall EnviroInsite and reinstall the 32-bit version.