Could not find module 'ACSCL_x64.dll'

Question

I'm working with ASC controller on Windows using the acspy package.

Here is a simple script to demonstrate what I'm trying to do:

from acspy import acsc

address='127.0.0.1'

controller = Controller(contype='ethernet', n_axes=4)
controller.connect(address)

acsc.runBuffer(controller.hc, acsc.ACSC_BUFFER_3)

Then I get this error:

FileNotFoundError: Could not find module 'ACSCL_x64.dll' (or one of its dependencies). Try using the full path with constructor syntax.

Please tell me where or how do I provide this missing file?