TS 4.0 on Laptop with "software dongle"?

[Ian MacAuslan <imacauslan@xxxxxxx>]

A few days ago I remember reading a post on the omega-list from someone
who spent a lot of time on the road, and was using TS 4 on both his
laptop and desktop.  It sounded like he was using a third-party piece of
software workaround to avoid having to constantly move his TS 4 "dongle"
back-and-forth between whichever computer he was using.

This is my situation exactly, and I seem to have deleted the original
post.  Does anyone have this, or know if there is such software.  I
don't want to do anything illegit, but WOULD like to be able to use my
TS 4 on my laptop with a minimum of hassle (not just moving the dongle,
but having to copy back and forth my 800 MB intraday tick database every
time I switch back and forth!)

Thanks
Ian MacAuslan