Photoshop cs6 Extended activation from Dvd?

For2itus  wrote I just bought a DVD disk version of Photoshop cs6 Extended on eBay in an opened DVD case. The disk is in perfect shape & it has an activation code on the DVD back cover

There's no reason to even ask. Any CS6 copy sold now - many years after Adobe stopped selling them - is a pirate copy. CS6 copies is all the pirates have left now. They can't sell CC licenses, nobody would buy them when the real thing is available for only $10 a month.

There was never an "activation code". There was a serial number that you entered during the install procedure, with a confirmation when accepted, and then the software was activated silently in the background later.

With activate/deactivate grayed out, the hackers either disabled that, or it's a volume license sold individually, which always was illegal.

Does not seem to be a normal CS2 install.  If the serial you received is a valid Adobe serial you should be able to download Photoshop from Adobe site and install and activated CS6 using that serial.  Download Adobe Creative Suite 6 applications  anyone can download CS6 it will install as a trial without a serial.  With a valid serial you should able to activated CS6. If your ebay CS6 was cheap you have been scammed... CS6 Standard should be around $700 Extended around $1000.  Perhaps more not the Adobe no longer markets CS6.  A used licence need to be transfred to the new user through Adobe. Transfer an Adobe product license

Also, I looked under the Help tab & I found Activate and Deactivate were grayed out.