The new Minefield icon from bug 340976 (attachment 297369 [details]) causes build failures for certain versions of rc.exe, so I had to back it out. Need to figure out which ones, and whether we can require an SDK that includes a new enough one, before landing it again.
You need at least the Win2k3 PSDK. VC8 is not new enough.
Is the version of rc.exe the only factor? Stuart and I both seem to have version 5.2.3690.0, and he had problems with the new icon when I didn't.