'V-Grep', and 'Paint Star'

V-Grep

V-Grep is an easy to use while feature-rich application that brings regular expressions power to Windows users. Even in DOS you could use 'masks', to speed-up searching for files. Masks are special types of strings that with the help of reserved characters; for example: an asterisk and question mark allow you to easily describe complex patterns. Sounds complicated? It isn't. A very simple expression '*.txt' describes every string that ends with '.txt' phrase. Regular expressions use basic concept of masks, but they add even more special characters that can represent definite number of characters, optional phrases etc. You can specify expressions representing complex patterns that are difficult or impossible to find using only masks, such as: e-mail addresses, telephone numbers, IP addresses etc. In the Unix-class systems, regular expressions are handled by a program called GREP (Global Regular Expression Print). V-Grep (Visual GREP) gives you whole functionality of GREP and lots of other very useful options: all packed in a typical Windows GUI (Graphical User Interface). V-Grep allows you also to search for files even without any knowledge about regular expression, but even then it's much better way to do this than by using Windows built-in search feature (mainly because of a more legible search results).

http://www.vgrep.aionel.net/

Paint Star

PaintStar is a versatile digital image processing software suitable for such tasks as retouching of photographs, composing and authoring images, image morphing, screen capture, and displaying image thumbnail in Windows Explorer context menu. It supports alpha, layer, path ,and the most common editing techniques. PaintStar has many of the tools and filters you would expect to find in commercial offerings, and some interesting extras as well.

http://wang.zhenzhou.googlepages.com/