hello all, a few technical precisings:
@ contra966: you should never have "[desc=RHP]resources hogging problems[/desc]" with uTorrent/BitTorrent 6.0.x+ versions running along. as already raphjd mentioned, both are the same core. in addition, both have the ability to run in multiple instances (for special purposes) and i'm not encountering any RHP (run on XP SP3 with no protecting software). if you do have some, it's for sure related to the combination of various services running concurrently, perhaps also with Vista compatibility problems (there are still some issues not fixed yet). in addition, you should never run so many sharing programs concurrently unless you have a really fast uplink
@ raphjd: when running more instances concurrently, there is no "slot competition" problem because both programs (or the same one running multiple times) uses their own dedicated RAM blocks so that they behave as standalone applications and if properly set, they even don't interfere with each other's listening ports. (if not properly set, only one of them can use the dedicated port range and the other one(s) turn(s) to the "not connectable" state, thus their transfer speeds may suffer)
@ Uwe: no need to worry about the "DNA add-on", this is the official BT plugin, no crap. it has its planned purpose (widely explained on BT site pages) but currently not widely implemented. if you find it disturbing, it's easily removable (Uninstall XP section) or you can configure it to be stopped until manually started, since it behaves as an XP service and has its graphical user interface under "Control Panels"