What prevents a hack against Process Guard itself? Haven't I, by purchasing it, simply moved the point of attack?
Process Guard is based on a kernel mode driver, nothing can get below this level in the operating system. You can close the Process Guard graphical user interface and, providing you had enabled protection, you are still protected. Process Guard uses many methods to protect your PC & programmes, including the prevention of .dll injection, Close Message Handling devices, MD5 protection for all programmes - The list goes on & on. There is a limited free trial available so please try it
Process Guard provides full protection for itself (even in the free version) so you really shouldn't have to worry about Process Guard itself as it looks after itself, and it will actually provide you with MORE protection than you have ever been able to achieve before.