File format unrecognized?

[Jeremy]

I am using Mingw, build 2.10, and dmd 0.157:

C:\dmd\FreeUniverse>build FreeUniverse.d -debug

C:\dmd\FreeUniverse>objdump FreeUniverse.exe -Dxr
objdump: FreeUniverse.exe: File format not recognized

C:\dmd\FreeUniverse>gdb FreeUniverse.exe
GNU gdb 5.2.1
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i686-pc-mingw32"..."C:\dmd\FreeUniverse/FreeUniverse
exe": not in executable format: File format not recognized

(gdb) q

C:\dmd\FreeUniverse>FreeUniverse.exe
<runs fine... except for that damn access violation i can't solve>