Hello thapap, Thnx for the wiki-update on VMware, as well as clearing the fact that you weren't referring to the Overall Memory Leak, and was just indicating the memory leak that could occur during the OS STARTUP. That doesn't mean Linux is overflow proof though..!! Anyways, here's what I'm interested in..after reading your repeated 'hyperthreading' and 'multiple kernel' phrases: Let me tell you what I've understood: A single physical processor with multithreading capability (which all the state-of-the art processors possess) is enhanced one step above, giving it a look-and-feel of 'hyperthreading'; while making the processor appear as two logical processors, so as to more efficiently service the threads. You load multiple kernels on the bootloader menu such as linux loader (lilo) or grub, or whatever new third party releases are there these days; giving you an option to choose the OS of your choice to load with.... in other words -- 'multiple boot' .. or in my own terminology, an 'extended dual boot' ;) That's what I see on the forum example link you provided. And this functionality can be found in Windows as well, given that we are limiting ourselves exclusively to load different Windows OS versions. What I naively didn't understand is: Is there more you're saying besides that? Are you saying you can have multiple standby kernels on which you can switch back and forth during runtime -- pretty much like switching between Gnome and KDE whenever you get enough of one desktop environment? If that is so, then Thank You :) You've made my day.. !! Otherwise, my VMWARE still rocks. :) cheers! ~@~