Emacs Hex mode

Very good for analyzing files in hex mode!

M-x hexl

Light Bot

Funny game for a programmer!

Search for text in subdirs with find and grep

Search for the string "require" in all ruby files (extension .rb).

\usr\wbin\find . -name "*.rb"|xargs grep "require"

DebugView from VB6 and C#

Use System.Diagnostics.Debug.WriteLine() in C# to generate print outs that can be displayed in the excellent tool DebugView.

In VB6, use OutputDebugString().

Create Sequence Diagrams Online

Easy and cool way to create sequence diagrams

Command window here

On Windows 7:

Use SHIFT+right_click in Windows Explorer to get a lot more features. For example "Open command window here".

Find crash dump file

On Windows XP Dr Watson is the default tool that generates crash dump files. They are sent to Microsoft if you accept the dialog box after a program crash.

Dr Watson

This is the default location for dump files: C:\Documents and Settings\All Users\Application Data\Microsoft\Dr Watson\user.dmp

To bring up the GUI: drwtsn32.exe

Use Windbg to analyze the crash dump file. Included in Windows SDK, debugging tools. The PDB-files for the crashing app is needed to make any sense of the dump file.a

In Windows 7, Dr Watson is replaced by the Action Center. Use Task Manager and right click on the process and select "Create Dump File".