我一个朋友在国内用TaxTron报税，结果用License Code无法激活，在4台机器上试了都不行。只好让我在这边给报了。
我给TaxTron写了电子邮件，答复如下：
The server in China could also have blocked this application, however, it is more likely that there may have been a firewall on her computer that was preventing her from activating TaxTron.
真是莫名其妙，怎么可能？