The ArrayDebugView-Add-In extends Visual Studio and adds graphical view capabilities to the debugger. You can plot the data from any array by specifying a pointer expression and a length. Features: Zoom-function, a cursor, saving to a file.
When after the ArrayDebugView installation the icon does not appear, this might be because Visual Studio caches certain icon information in the CmdUI.PRF file.
To fix that problem you can delete (or rename) the file, unregister ArrayDebugView, start Visual Studio, close it, register ArrayDebugView again.
The CmdUI.PRF-file would be in your Application Data subdirectory: E.g.
Windows XP: "C:\Documents and Settings\<user>\Application Data\Microsoft\VisualStudio\<version>\1033\CmdUI.PRF"
Windows Vista and higher: "C:\Users\<user>\AppData\Roaming\Microsoft\VisualStudio\<version>\1033\CmdUI.PRF"
Although this has always worked for me, but I can't give guarantees of any kind. Make backups!