DebugView for Windows
DebugView is an application that lets you monitor debug output on your local system,
or any computer on the network that you can reach via TCP/IP. It is capable of displaying both kernel-mode and Win32 debug output,
so you don't need a debugger to catch the debug output your applications or device drivers generate,
nor do you need to modify your applications or drivers to use non-standard debug output APIs.
IECookiesView IECookiesView is a small utility that displays the details of all cookies that Internet Explorer
stores on your computer. It is very useful when developing ASP.NET applications. In addition,
it sorts the cookies list by any column you want, selects and deletes the unwanted cookies,
and saves the cookies to a readable text file.
OpenGL
Extensions Viewer
The famous freeware "glview" is currently a complex program that
shows all OpenGL extensions, pixel formats, and shader
compatibilities in your computer.