Phiewer - Image Viewer - Phiewer is the easiest and fastest way to view your images, videos and even audio files.

Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.

ImageGlass - You can use Image to view your digital images and photos of many different formats.

Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.

IrfanView - IrfanView ... one of the most popular viewers worldwide.

Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++