I am trying to get my operating system/programs able to run from a USB flash drive/hard drive. I don't know if this makes sense, but basically I have been told there are programs that allow you to install applications on your thumb drive and bring it to any computer and use them (from what I can tell, these programs use a Windows overlay, similar to VMware). There are several things I am looking for in such a program: 1: Must be able to easily install complex applications (such as large games and other DVD-installed programs; meaning the install package is not a single executable) 2: Must be able to run on multiple machines *without* installing any software on the guest computer 3: Would like it to be as fast as possible, although speed isn't my main concern There are others that I am forgetting right now, but that should help for now. Does anyone know of what I am talking about, and where I can look? *EDIT* I have tried something called "MojoPac", but haven't had a whole lot of success so far (very hard to install, and after successful install it won't run on another computer). I have also tried "VMware ACE", which would have been perfect but as far as I can tell it requires that you install "VMware Player" on the guest machine, which won't work in my case.