A: The plugin was specifically coded for the Photoshop CS2 engine. While the company Anurag Academy has produced other "i21" photo editing software that is compatible with modern versions of Photoshop, the original Anurag 10 Pro is best suited for CS2, CS3, CS4, and CS5.

Inside CS2 ( Edit > Preferences > Display & Cursors ):

Anurag 10 Pro provides advanced masking algorithms that work surprisingly well with older Photoshop versions.

Anurag 10 Pro for Adobe Photoshop CS2: Enhancing Workflow and Efficiency