I've been told there's a tool which can be ran from a currently-running Windows to create an image of it, which later can be used, or converted to a format which can be used by vmware. Since I have some special conditions I wouldn't discuss, I need to copy the currently-running windows Vista with this tool.
How this cloning tool is called?
UPDATE: "special conditions" include a hard-drive encryption called as PointSec, therefore I really can not mirror the disk off-line.