Portable Adobe Photoshop CS3

Have not checked the status of copyright, but there seems to be a portable version of Adobe Photoshop CS3. It can be downloaded from many sites (e.g. on Rapidshire, Hotfile. But obviously due to copy right issues, they have been deleted) are some examples. The file size is about 60MB, and takes a while to startup. But the basic functions all seem to be there.