After coming across the WinFile with enhancements being open sourced, and seeing the "Issues" tab where there's a request to port to Windows RT Desktop -- Well, challenge accepted!
Here's the result:
More info after the entry.
Requirements:
Basically remove any debug define info.
Remove references to x86, so nt headers don't pull in x86 asm.
Remove linking with standard libraries.
Remove the security item.
Compile and iterate by adding libs for symbols that did not link.
Result was adding these: LIBCMT.LIB; User32.lib; shell32.lib; Shlwapi.lib; Gdi32.lib; Comctl32.lib; Advapi32.lib; ole32.lib; OleAut32.lib;
Those all need to be matched with the ARM libraries on the RT machine, I think.