Opening a non supported/empty file on 7-Zip causes ros to crash.

(subsystems/win32/win32k/ntuser/window.c:1558) FIXME - Parent is HWND_MESSAGE
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea505ac, Thread 8173e790, HANDLE 700e4
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea505ac, Thread 8173e790
fixme:(dll/win32/advapi32/sec/lsa.c:126) (0000CAFE,00598020,0058FE58,0x00000001) stub
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea50ebc, Thread 8173e790, HANDLE 20114
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea50ebc, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea510b4, Thread 8173e790, HANDLE 2011c
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea510b4, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea5114c, Thread 8173e790, HANDLE 2011e
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea5114c, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea511e4, Thread 8173e790, HANDLE 20120
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea511e4, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea5127c, Thread 8173e790, HANDLE 20122
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea5127c, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea512fc, Thread 8173e790, HANDLE 20124
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea512fc, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea5137c, Thread 8173e790, HANDLE 20126
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea5137c, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea51534, Thread 8173e790, HANDLE 2012e
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea51534, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea515cc, Thread 8173e790, HANDLE 20130
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea515cc, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea51664, Thread 8173e790, HANDLE 20132
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea51664, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea516e4, Thread 8173e790, HANDLE 20134
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea516e4, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea4ffe4, Thread 8173e790, HANDLE 20136
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea4ffe4, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea51764, Thread 8173e790, HANDLE 20138
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea51764, Thread 8173e790
(subsystems/win32/win32k/ntuser/window.c:1641) Created Window 9ea517e4, Thread 8173e790, HANDLE 2013a
(subsystems/win32/win32k/ntuser/window.c:1656) Wnd allocated for Window 9ea517e4, Thread 8173e790
WARNING: MmLockPagableSectionByHandle at ntoskrnl/mm/drvlck.c:43 is UNIMPLEMENTED!
WARNING: MmUnlockPagableImageSection at ntoskrnl/mm/drvlck.c:79 is UNIMPLEMENTED!
(subsystems/win32/win32k/ntuser/window.c:355) FreeWindow 9ea51b3c
(subsystems/win32/win32k/ntuser/window.c:355) FreeWindow 9ea51bbc
(subsystems/win32/win32k/ntuser/window.c:355) FreeWindow 9ea5196c

(subsystems/win32/win32k/ntuser/window.c:2086) IntCreateWindowEx(): send CREATE message failed for 9ea50ebc, a14b5390. No cleanup performed!
(subsystems/win32/win32k/ntuser/window.c:2087) LastChild 9ea5127c
(subsystems/win32/win32k/ntuser/window.c:2088) FirstChild 9ea510b4
(subsystems/win32/win32k/ntuser/window.c:355) FreeWindow 9ea50ebc
(subsystems/win32/win32k/ntuser/window.c:742) DestroyThreadWindow 9ea505ac, 1
(subsystems/win32/win32k/ntuser/window.c:355) FreeWindow 9ea505ac
(subsystems/win32/win32k/ntuser/window.c:742) DestroyThreadWindow 9ea50ebc, 2
Entered debugger on last-chance exception (Exception Code: 0xc0000005) (Page Fault)
Memory at 0x80AEA90C could not be read: Page not present.
kdb:> bt
Eip:
<win32k.sys:823ab (subsystems/win32/win32k/ntuser/winpos.c:1327 (@co_WinPosShowWindow@8))>
Frames:
<win32k.sys:80120 (subsystems/win32/win32k/ntuser/window.c:2362 (@co_UserDestroyWindow@4))>
<win32k.sys:80395 (subsystems/win32/win32k/ntuser/window.c:745 (@co_DestroyThreadWindows@4))>
<win32k.sys:4c86b (subsystems/win32/win32k/main/dllmain.c:287 (Win32kThreadCallback@8))>
<NTOSKRNL.EXE:8b397 (ntoskrnl/ps/kill.c:694 (PspExitThread@4))>
<NTOSKRNL.EXE:8be92 (ntoskrnl/ps/kill.c:964 (PspTerminateThreadByPointer@12))>
<NTOSKRNL.EXE:8cace (ntoskrnl/ps/kill.c:1189 (NtTerminateProcess@8))>
<NTOSKRNL.EXE:9fc1a (ntoskrnl/ke/i386/trap.s:244 (KiFastCallEntry))>
<ntdll.dll:5e15>
<msvcrt.dll:e206>
<msvcrt.dll:e222>
<7zFM.exe:3a60a>
<kernel32.dll:21991>
<00000000>
kdb:>

When the CREATE message fails for the given window,the code jumps to cleanup. In cleanup a call is made to UserFreeWindowInfo(ti, Window);
In UserFreeWindowInfo Heaps are freed for the WindowName and Wnd members and they are set to null.
When 7-Zip fails to open archive and it terminates, co_DestroyThreadWindows gets called.
This function gets each Window for the thread and calls co_UserDestroyWindow for each.
In co_UserDestroyWindow a call is made to co_WinPosShowWindow
and in this function code is as follows:

Wnd = Window->Wnd;

WasVisible = (Wnd->Style & WS_VISIBLE) != 0;

Wnd for the Window was freed and set to NULL, back at the call to UserFreeWindowInfo in co_IntCreateWindowEx.

Should UserFreeWindowInfo in the cleanup for co_IntCreateWindowEx be co_UserDestroyWindow(Window) instead?