Legally, you must already own a valid CS2 license to use these "non-activation" installers.
The widespread belief that Photoshop CS2 is freeware stems from a 2013 event when Adobe disabled its aging activation servers. To support existing customers who had a license, Adobe provided a special version of the installer that did not require online activation, along with a universal serial number. Key Facts on Legality: adobe photoshop cs2 90 2 free download top
Adobe no longer sells or provides official support for any Creative Suite 2 products. Adobe Photoshop CS2 9.0.2: Key Features Legally, you must already own a valid CS2