I'd like to make my program run users-wide, In my computer I have 2 accounts only, and I'd like my drawing program to be installed for both. But at the time of installation, I don't want to ask me if I like to install my own program for the other account, it must be there by default.

I'd like to search google, but I don;t know the terms or apis used for this kind of application
Could you suggest give me some so I can move up a little ?

Thank you