You should assign a different password for each program you develop. This can be done at run-time or at design-time.

If you choose to assign a password at design-time, it will be easier to hide it inside your code.

Example:

'--- Assign a password to your program
ActiveLock1.Password = "ALEPH"

IMPORTANT: You are not supposed to distribute this password, because it is your software's lock. Use this password to generate LiberationKeys with the KeyGenerator.

See also: SoftwareCode property.