Its GIMP 2.2.17 Portable!

GIMP Portable 2.2.17 Release Date: 2007-07-16
GIMP Portable 2.2.17 File Size: 11.62MB

Portable GIMP is the popular the GIMP image editor packaged as a portable application, so you can take your images with you and do your editing on the go.

The GIMP (GNU Image Manipulation Program) is a freely distributed program for such tasks as photo retouching, image composition and image authoring. Portable GIMP has many capabilities.
Portable GIMP can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, an image format converter, etc.

GIMP Portable Website           Download Free GIMP Portable 2.2.17