I'm currently running in Linux, but the context of the question as asked on the PCLinuxOS Forum was like this:
Somebody was interested in a piece of hardware that would be placed in between the keyboard and the computer? that would interpret keystrokes from a dvorak keyboard and output them as qwerty and vice-versa. The OP was thinking along the lines of having two kyboards attached at the same time, and not have to alter the computer settings to use either one or the other.
To do that in linux, it is required to open the control center, select the hardware configuration tab, select dvorak keyboard in the keyboard options, and exit the control center.
For windows, this can actually be set up in the "Language and regional options" in the control panel, and as it seems it can also be displayed as a menu already on the taskbar. Had I looked through a friends windows install earlier I would not have posted this, as it seems that M$ has already provided a solution to this.
thanks for considering this post, and I'll do a little more research before I post next time.