1. Download
Adobe Photoshop CS5 Extended v12.0 – Working 100% (Mac) [Updated Serials Nov, 2011]
2. Mount the “Photoshop_12_LS1.dmg” – Locate and click on the file “Install”
3. Select “Install this product as a trial” and click on next.


4. Quit CS5 if it opens after launch
5. Open the “Terminal” application and paste in the following:
sudo nano /private/etc/hosts
6. Paste in the following, between 127.0.0.1 localhost and 255.255.255.255 broadcasthost:
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 127.0.0.1 hl2rcv.adobe.com
7. When done editing the hosts file, press ctrl-O to save the file. Press enter on the filename prompt, and ctrl-X to exit the editor.
8. Open the “Terminal” application and paste in the following to flush the DNS cache:
dscacheutil -flushcache
9. Open “Photoshop CS5” and enter the serial number.

10. FINISH and Enjoy
Bedanya tutorial ini dengan edit host file (buat OSX Lion scriptnya berbeda, cek halaman depan)
Kalo pake Keygen/patch,lewati saja tahap edit host file,langsung buka aplikasi – open keygen – generate – copy/paste – enjoy