如何破解Flex4序列号失效问题

用记事本编辑“C:\Windows\System32\Drivers\etc\”目录下的 hosts 文件，在末尾加上：
127.0.0.1 activate.adobe.com
127.0.0.1 practivate.adobe.com
127.0.0.1 ereg.adobe.com
127.0.0.1 activate.wip3.adobe.com
127.0.0.1 wip3.adobe.com
127.0.0.1 3dns-3.adobe.com
127.0.0.1 3dns-2.adobe.com
127.0.0.1 adobe-dns.adobe.com
127.0.0.1 adobe-dns-2.adobe.com
127.0.0.1 adobe-dns-3.adobe.com
127.0.0.1 ereg.wip3.adobe.com
127.0.0.1 activate-sea.adobe.com
127.0.0.1 wwis-dubc1-vip60.adobe.com
127.0.0.1 activate-sjc0.adobe.com

启动FLex Builder，输入序列号，之后就可以正常使用了

1424-4118-1138-0912-4001-7222
1424-4012-2754-1802-2619-8928
1424-4766-4350-7925-0705-3050

http://niweiwei.iteye.com/blog/1104639