Hi,
This situation is explicitly handled in our License Agreement.
3. Other Restrictions.
(a) You may use the full functionality of the Software by purchasing a Registration Key at
http://www.sciral.com/purchase/. The Registration Key unlocks the Software's full functionality. You may make a copy of the Registration Key for backup purposes, but you may not disseminate the Registration Key to others. Each Registration Key you purchase grants you the non-exclusive right to use the Software's full functionality on either 1) a single home computer in a single family dwelling (a single Registration Key may be shared among immediate family members), or 2) an individual member or employee of a commercial, governmental, or other organization (a single Registration Key may NOT be shared among members or employees.)
Hope this helps!