₦airaland Forum

Hi mr Lucky i am new to this forum, i have been going through some of the post in the vb6 section of this forum, and i have seen how you have been responding to almost all the question in the section, i pray God rewards you abundantly.
My question is concerning Encrpytion/decryptiom of a program. You see am Building a program using vb6 and mysql as the backend. The program is on Staffdatabase/StaffSalary, so i call it StaffEstablishment(i.e. my database). the program is almost at it concluding part, but what is holding me and i dont have an idea on how to go about it, is how to secure and saveguard the program. By this i mean i want to write a CODE that will generate some keys in form of numbers and alphabets that most be provided when installing the program in order for the program to run as a full version otherwise it will only be use as a Demo with some restriction in accessing and using some forms and data, and also with time constrain, in which when using it as a Demo you will have a very limited time to use it, like say one month after which if you do not provide the keys the software will block you from even loggin in. Pls help me i dont know how to start this code i would have show you the sample. But for the user name and password i have already created some users and thier password.  thanks in advance.