Applies to ZWCAD Classic, ZWCAD 2015; ZWCAD 2014; ZWCAD 2012; ZWCAD 2012(ITC)
There are two kinds of dongle:
A. Old version with parallel port
If clients use this kind of dongle, they may have some problems when activate in the latest version of ZWCAD, which could not be normally recognized due to the driver support. So when this happens, they need to use a new version of dongle.
B. New version with USB port
If the current dongle is the new version, clients can manage different yearly version of ZWCAD with the same dongle, while using different license codes. So they don't need to change the dongle.