It may seem to you that I'm trying to "hack" this library AcitveX. But it is not. The manufacturer of this library, simply using strange (at least for me) licensing method. Their objects do not have the normal method to use a license key. After contact with their support team they showed me the above-mentioned link.   So, any help in solving this problem will be greatly appreciated. Best regards, mLipok   EDIT: some more info: http://forums.textcontrol.com/showthread.php?319006-can-i-use-this-ac