IDE
An integrated development environment (IDE) might be the best way to go if you are a software developer and need to be aware of all parts of your project at the same time. IDEs usually come with built-in compilers, source editors, revision managers and a lot more useful features.
JRuby
webcpp
Microsoft Speech SDK
Miraplacid Data Viewer
MindFusion.Diagramming for WPF
MyUML
Delphi IDE Theme Editor
DBF Script
Source Insight
PureBasic
DirectSOFT - Programming
MPLAB XC8 C Compiler
EDraw Flowchart ActiveX Control
GNU Common Lisp
MST Workshop
Z80 Simulator IDE
SASM
CLIPS
Assembly Analyzer
Visual Basic Upgrade Companion
BitNami Mantis Stack
Codelobster PHP Edition
wxPython (unicode) for Python
CUTOK Master
MPLAB IPE
ArgoUML
WPF Toolkit
Snapbyte Flash Studio ActiveX DLL
Instrumentation Widgets
WinShell
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.