Referencing the ADO Libraries
The latest version of ADO is packaged as msado15.dll. The latest versions of ADO MD and ADOX are packaged as msadom.dll and msadox.dll, respectively. These libraries are installed by default in the $installDir, where $installDir stands for the path of the directory in which the ADO library has been installed on your machine. To use the ADO libraries in your application, you must reference them explicitly in the application project.
Illustrated below are steps you can take to reference the ADO libraries: