How do you remove STATEFUL components from memory in EAServer?

This is from one of the books on Powerbuilder/EAServer:

"So the major difference between stateless and stateful components is that stateless components

automatically invoke the component deactivate event when a method call ends and the component

is logically removed from memory. A stateful component remains in memory until physically re-

moved by the caller."

What does the caller (client Powerbuilder program) do to physically remove a stateful component from EAServer?

Thanks,

Mark