Replicants

Replicants are small self-contained parts of applications that can be integrated into the Desktop (and other programs).
Provided Deskbar's option to Show replicants is activated, replicants are indicated by a small handle.
You can drag & drop them by the handle onto the Desktop, where they are fully functional without their parent app running.

You can move a replicant by its handle and remove it with a right-click on it and choosing Remove replicant.