activex dll licence

my aplication uses an activex dll ( self created )

i don't want other programmers to use this in their application.

i can do it by creating a passowrd kind of link between my application and activex dll.

but is their some other way ( more professional ) ,

some licence kind of thing to accomplish this ?


Thanks.

The only professional way to include a license is to include a textfile stating that people cannot use it.
Then, back that up with the sort of password method that you mentioned. Sounds perfectly professional to me. :D

what is licence key option in project properties ?

I suppose that is not available in activex dll ,

But what does it mean in case of activex control ?