It's on the General tab in file properties from explorer. Either via the DLL in question, or you can do it on the zip file before you extract if it was a download, there will be an unblock button at the bottom right.
It's on the General tab in file properties from explorer. Either via the DLL in question, or you can do it on the zip file before you extract if it was a download, there will be an unblock button at the bottom right.