Without Guest Additions:

fixme:(dll/win32/shell32/shlexec.cpp:1774) flags ignored: 0x00004000
(lib/rtl/actctx.c:2395) unknown element trustInfo
fixme:(dll/directx/wine/wined3d/dxtn.c:480) Wine cannot find the txc_dxtn library, DXTn software support unavailable.
fixme:(dll/directx/wine/wined3d/directx.c:1614) Received unrecognized GL_VENDOR "Brian Paul". Returning GL_VENDOR_UNKNOWN.
fixme:(dll/directx/wine/wined3d/directx.c:2321) No card selector available for card vendor 0000 (using GL_RENDERER "ReactOS Software Implementation").
err:(dll/directx/wine/wined3d/directx.c:1420) Invalid GPU override 10de:0018 specified, ignoring.
err:(dll/directx/wine/wined3d/directx.c:1492) Card 10de:0018 not found in driver DB.
err:(dll/directx/wine/wined3d/directx.c:1528) No driver version info found for device 10de:0018, driver model 0x2.
(win32ss/user/ntuser/winpos.c:2236) err: co_WPSW FT 1
(win32ss/user/ntuser/winpos.c:2248) err: co_WPSW FT 2
WARNING:  MmLockPageableDataSection at ntoskrnl/mm/ARM3/drvmgmt.c:62 is UNIMPLEMENTED!
WARNING:  MmUnlockPageableImageSection at ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!


With Guest Additions (experimental 3D support):

fixme:(dll/win32/shell32/shlexec.cpp:1774) flags ignored: 0x00004000
(lib/rtl/actctx.c:2395) unknown element trustInfo
(dll/ntdll/ldr/ldrinit.c:831) LDR: DLL_PROCESS_ATTACH for dll "VBoxOGL.dll" (InitRoutine: 00F01FDE) failed
(dll/ntdll/ldr/ldrutils.c:2339) Image Application-x32.exe has no exports, but were trying to get procedure DrvValidateVersion. BaseAddress asked 0x00400000, got entry BA 0x00400000
(win32ss/user/ntuser/winpos.c:2236) err: co_WPSW FT 1
(win32ss/user/ntuser/winpos.c:2248) err: co_WPSW FT 2
WARNING:  MmLockPageableDataSection at ntoskrnl/mm/ARM3/drvmgmt.c:62 is UNIMPLEMENTED!
WARNING:  MmUnlockPageableImageSection at ntoskrnl/mm/ARM3/drvmgmt.c:39 is UNIMPLEMENTED!