I don't think Bochs will be able to directly access a hard drive partition. In any case, it's horribly slow (at least the last version I tried), to the point of being unusable. Bochs is great for some things, but I wouldn't necessarily suggest it for what you're attempting. You may want to simply shell out for VMWare, which can boot a hard drive partition as a virtual machine. VMWare has a free and complete thirty day trial version so you can at least see if it will do what you want before opening your wallet. Otherwise you might try your apps under WINE (or have you already?).
Edit to add: There's also qemu, which is supposedly faster than Bochs, but I am not sure if it will be able to boot a virtual machine off of a hard drive partition.
Last edited by btmiller; 12-10-2005 at 10:24 PM.