Help finding some icons that I would like to change

As the title states, I am looking for a few icons that have eluded my detection. I have Iconsext, resource hacker, icofx, and a multitude of other utilities. Maybe these icons are not accessible, but thought I would ask the knowledgeable folks here. First is the little blue speaker icon in the volume popup, and the other is the wifi signal strength in the wireless popup. If anyone has some ideas, let me know.

See attached images

Changed those already too. Taskbar wifi changes, but not in the pop up. Rebuilding icon cache does nothing. There are several other icons, that I have changed also, that have not taken, I dont know why.

Then something is not working then. I have searched for icons in the Windows folder, which includes syswow, and sys32, and I get some obscure entries with original icons. I will post another screenshot showing this.

These are the obscure entries. There are 4 entries for every Icon, two in syswow, and sys32

When I do a search in the windows folder using Iconsext, these extras show up. You will notice that the regular sys32 and syswow icons are already changed. I was wondering if these icons were cached somewhere other than the icon cache, and causing them not to show up correctly. I have run delete iconcache.bat several times also. The problem is that although I have the modified icons installed in the correct dll's, they are still not changing in the areas I want them changed. The image above is using Iconsext in c:\Windows, not C;Windows\system32, or C:\Windows\syswow64.