Editors:

Notepad/Wordpad 5.1
edit (dos)
TextPad 4.73
Programmer's File Editor 1.01
VIM 7.1
Emacs 21.3

IDEs:

Eclipse 3.1
JCreator 3.5
Microsoft Visual Studio 2005/2008
NetBeans 5.0

Compilers:

Sun Java 1.5/1.6
gcc/g++ 3.3 (cygwin)
Microsoft C++/C#
Visual Basic .Net