Ya, must agree w/ ya, i think i misstated my point.
i think a good example of a browser is Firefox.
With Firefox you can have multiple instances of it open, each with multiple tabs if desired. You can also have it open from any place that you save the shortcut to and to start at any address or location desired. In addition to all this it opens itself to plugins.
It seems for the time being these Windows explorer replacement programs all have pieces of the puzzle but are incomplete as a whole. Windows explore included though i think its the best currently available (generally speaking).
With QT Tabber you cannot have multiple explorer windows open, your forced to keep all the explore windows in tabs in one window only. thats the bad and kind of a big turn off, though you can still drag and drop files by dragging them on to the tab thus opening the window, you can no longer (if im not mistaken) visually view two explorer windows side by side. There are other apps. of course that allow for side by side viewing, but they miss out in some other areas. The good is that you can still use all your window folder shortcuts on your docks or anywhere else.
UltraExplorer runs separately from Windows explorer, the bad is that you cant have multiple shortcuts that upon selecting open at the desired file location. (thats how i'd guess the gen public work) The good is that its very effective and convenient in terms of rearranging or sorting many files, which i happily used it for this morning.
Personally im hanging on to UltraExplorer its good to have one of these for organization projects. But as for my regular browser fo the time ill stick w/ explorer, the best of the worst.