A tiny script that extracts all icons from the files in "Windows\system32" and shows the extraction log.
An example output from Windows 8.1 64-bit
Name Icons Size Description
----------------------------------------------------------------------------------------
imageres.dll 399 47703 Windows Image Resource
shell32.dll 322 18203 Windows Shell Common Dll
wmploc.DLL 193 9154 Windows Media Player Resources
netshell.dll 165 2640 Network Connections Shell
DDORes.dll 134 15424 Device Category information and resources
mmcndmgr.dll 129 2239 MMC Node Manager DLL
twinui.dll 122 11397 TWINUI
ieframe.dll 116 10958 Internet Browser
moricons.dll 113 180 Windows NT Setup Icon Resources Library
compstui.dll 101 283 Common Property Sheet User Interface DLL
inetcpl.cpl 60 1881 Internet Control Panel
RtsUStoricon.dll 53 9656 Realtek Card Reader Icon Dll
SyncCenter.dll 50 2115 Microsoft Sync Center
setupapi.dll 47 1725 Windows Setup API
FXSRESM.dll 41 903 MicrosoftFax Resource DLL
mspaint.exe 40 6264 Paint
pifmgr.dll 38 34 Windows NT PIF Manager Icon Resources Library
dsuiext.dll 36 652 Directory Service Common UI
msihnd.dll 28 274 Windows® installer
rasgcw.dll 28 816 RAS Wizard Pages
stobject.dll 28 282 Systray shell service object
Taskmgr.exe 28 1039 Task Manager
msctf.dll 27 994 MSCTF Server DLL
mshtml.dll 27 16741 Microsoft (R) HTML Viewer
WlanMM.dll 26 914 Dot11 Media and AdHoc Managers