參考
1. Defeating the Adobe CS4 ‘License Expired’ dialog in OS X
http://machacks.tv/2009/01/26/defeating-the-adobe-cs4-license-expired-dialog-in-os-x/
2. Stop Adobe CS4 calling home to Mother Ship in OS X
http://machacks.tv/2009/01/28/stop-adobe-cs4-calling-home-to-mother-ship-in-os-x/
3. 序號
http://xsellize.com/topic/32221-adobe-photoshop-cs4-serial-number/
如果PS告訢你的serial number已過期，而你又繼續使用的話，可以先按照第一個網頁，在FINDER找出 /Library/Application Support/Adobe/Adobe PCD/cache/cache.db 拉進垃圾桶，接著解除跟ADODE mothership的聯係，在Application->Ultility找到Termninal, 按照2的方法，鍵入
cat /etc/hosts
sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /etc/hosts
<輸入admin password>
把以下的一組地址抄到最後，即 “::1 localhost” 後，沒有空行的
127.0.0.1 adobe.activate.com
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
SAVE，QUIT TEXTEDIT
重新開PS4，就像第一次使用一樣！
