diff --git a/py_aax_decode/native.py b/py_aax_decode/native.py
index 7af4bf5..93b3ce8 100644
--- a/py_aax_decode/native.py
+++ b/py_aax_decode/native.py
@@ -18,7 +18,12 @@ class MetaData(Enum):
     # _unknown3 = 0x4075616 #STILLNOKLINGON?
 
 
-def main(in_file, out_file):
+def main(in_file, out_file, dll_path=None):
+    if dll_path is None:
+        dll_path = 'c:\\Program Files (x86)\\Audible\\Bin\\AAXSDKWin.dll'
+
+    dll = ctypes.CDLL(dll_path)
+
     handle = open_file(dll, in_file)
 
     a = (dll, handle)