I need to protect the cracks from the leechers so that only the specific users can use the cracks. It can be done by the loader which will authenticate with the server after the sites's (vbulletin based) username and password is provided which can be done by connection the vb database with the loader. Only the specific user group of the site can use the loader and if the user is removed from that specific usergroup than he must not be able to login to the loader. Every time user need to access the crack, the loader must check the status of the user whether he belongs to the specific usergroup or not. The cracks can only be accessed via that loader every time. For eg. if the VIP user of the site need to access the crack every time than he need to provide the username and pass of the site. There must be a feature to save the user and pass so that loader will login automatically next time. The loader must be well protected so that it can't be bypassed.