so this is what happen, my pc block my DLL.
If an application has been copied from the web, it is flagged by Windows as being a web application, even if it resides on the local computer. You can change that designation by changing the file properties, or you can use the element to grant the assembly full trust. As an alternative, you can use the UnsafeLoadFrom method to load a local assembly that the operating system has flagged as having been loaded from the web.
Try opening the file properties and clicking 'Unblock':
https://ibb.co/h2JDwx