
This is Portable Math Magic Pro v4.0.73.
MathMagic Pro Edition for Adobe InDesign is an equation editor mainly for use with Adobe InDesign software in editing any mathematical expressions and symbols with WYSIWYG interface and various powerful features.
Download MathMagic Pro Edition 4.0.73 Portable:

http://rapidshare.com/files/232643790/Portable_MathMagic_Pro_v4.0.73.rar