Check out the best unit converter available. Written in APL by my friend
Jeff Koloseous. I have been using it since 1997 and can find none better. If
you buy it the little start up screen reminder will go away. Otherwise you
can use it just like Winzip until you feel like you should pay the developer
for all his work.
http://www.tahlinc.com/products/unitmax.html
Cheers,
Jim