How to get the shell extension icon

Hello,
I used ShellExView utility and found it can get the shell extension icon. Now i have a question, can anyone please tell how to get the extension icon?
For example the WinRAR icon, in "HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers\WinRAR" or "HKEY_CLASSES_ROOT\Folder\ShellEx\ContextMenuHandlers\WinRAR", the default value point to the guid "{B41DB860-8EE4-11D2-9906-E49FADC173CA}", in "HKEY_CLASSES_ROOT\CLSID\{B41DB860-8EE4-11D2-9906-E49FADC173CA}\InProcServer32", it's value is "C:\Program Files\WinRAR\rarext.dll", but no icons in the file "rarext.dll", how to get the right winrar context menu icon? thank you very much.

Tried something like Icon Grabber?
Icon Grabber, Icon Extractor - Extract Icons, Convert Icons

Edit:
http://www.nirsoft.net/utils/iconsext.html
http://www.icon-maker.com/icon-extractor.htm

Thank you, but you did not understand my meaning, i want to know how to get the icon, do not want to use a software to get it.

Oh ok. I'm not really good at this sort of stuff.
I would be looking in the executable file though. I think I managed to get an icon from an executable using Reshack. I'm not sure, just my 2 cents.

In fact, we want to build a program get the shell extension icons, like WinRAR, CuteFTP... but do not know how to do that, where the Microsoft vb.net newsgroup? thank you.

Oh, so now you want to build a program? I'm kind of confused. Is it possible to have a peek at the icon extraction programs above? Then you could get an idea of what you need to do. Either that or I have got this terribly wrong.
Also, who is "we"?

Sorry, it's i but no we. Want to study ShellExView to build the similar utility, do not know to get the icons.