MultiCalendar Client/Server Edition

Question: After I entered MultiCalendar C/S Client license code, my computer told me that "You have too many copies of this program already running on your system or network. You are licensed for only 1 copy/copies at a time". What should I do?

Answer: This error was caused by using a same client license key on more than one computers. You are supposed to use a different license key on each client side computer. So make sure you enter a different client license key on each client side computer, then this problem will be fixed.