I have installed Adobe Illustrator CS 4 . I have two types of effects in this menu.
1. Illustrator Effects
2. Photoshop Effects
I see this option Unsharp Mask Effect menu ,Photoshop effects category under Sharpen Sub Menu.
My question is is Adobe Illustrator CS4 equipped with the Photoshop effects also?
Your question got posted on the Photoshop Forum, you might want to try the Illustrator Forum.