You don't need a driver to access a DLL either statically link to it at link time (using the DLLs associated lib file) or dynamically link to it at run time by calling LoadLibrary and GetProcAddress.
If you were to Google LoadLibrary and follow the first link (to the MSDN page) and then read that page about LoadLibrary about half way down the page you would find a link to an example.
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