product keys etc
at the end of this time if they want to subscribe to the service on a monthly basis they select the 30 day subscription option , provide their paypal details ( the only payment gateway i have at present ) and when the payment is approved they get full access to the program for 30 days , paypal has already been set up to accept recurring monthly payments.
i have some doubts that this is a perfectly safe ( from my point of view ) is there any program i should be using to provide any customer with a product key etc etc to ID them , or simply , should i be doing anything else to protect me from illegal / continuing use of my program by unscrupulous individuals ? thanks donar