"TitlePop installs a pop-up menu in the title bar of every window,
allowing you to
instantly access not only all the windows owned by that particular
program, but
also of any program currently running, including the Finder. (Savvy
Mac users
know that the Finder has a similar feature, which creates a pop-up
menu of an
open folder's parent folder(s) when you press the command key while
clicking on
the title bar. TitlePop is aware of this, and allows the Finder to
create this
menu when the command key is pressed, just like normal.)

In addition, version 3.0 of TitlePop now allows you to drag and drop
files or
data into any application or directly into open documents through the
pop-up
menu!" -- Jouko Pakkanen

Version 2 is freeware, 3 is shareware.

Serial for 3.0.3/3.0.4:
MoonDark
T30063661945

Compatibility
Architecture: 68k PPC

3.0.4 7.1-9.2.2
2.4.2 6.0.4-7.5.5 (higher untested)