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.
MPLAB IPE
ArgoUML
WPF Toolkit
Snapbyte Flash Studio ActiveX DLL
Instrumentation Widgets
WinShell
GUI Turbo Assembler
VBScript2Exe
Silicon Laboratories IDE
Stellarium for Java
EmBitz
Windows Scripting Host
PopupNotify
Ryder Mod Manager
Twacker 32
Cottage Of Doom
SPADE
ATI Stream SDK Developer
BetterStreams
Mindscape LightSpeed
.NET Reactor
Qt Eclipse Integration
PSPad
IBM Rational Software Architect
EPSON RC+
IBM SPSS Statistics Developer
Millenium 3
AniSprite
DirectSOFT32 - Programming
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.