Jack, We will continue, as Meta did (and frankly as most every software manufacturer does), to offer site licenses of Poser and the Pro Pack for corporate, academic and goverment users. These generally start with a 5 user license and go up from there. If you or any members of this forum have a need to discuss site licensing, please feel free to email me directly to request pricing information. Is the serialization check neccessary? Absolutely. Estimates are that between high volume warez duplicators, ill-informed end-users, ignorant or unscrupulous corporate users, and international bootlegging, Poser was impacted, at Meta, to the tune of just over 1 million dollars in lost revenue. That is for Poser alone. And suprisingly, a great number of these serialized versions had multiple users try to register the same serial number. Do I stand behind our decision? Yes. The only alternative is a hardware based dongle that plugs into your keyboard's adb, serial, ps2 or usb port, which is expensive and extremely inconvenient to change from machine to machine, and if lost or stolen, generally represents a full purchase price for replacement. Sincerely, Steve Cooper Curious Labs