BSOD 0x1E (Win32k.sys) when closing MPlay32 (ReactOS Media Player) child window

Entered debugger on last-chance exception (Exception Code: 0xc0000005) (Page Fault)

Memory at 0x00000032 could not be accessed

kdb:> bt

Eip:

<win32k.sys:8df10 (win32ss/user/ntuser/window.c:2984 (co_UserDestroyWindow))>

Frames:

<win32k.sys:8f5f4 (win32ss/user/ntuser/window.c:3030 (NtUserDestroyWindow))>

<ntoskrnl.exe:3fe5 (:0 (KiSystemCallTrampoline))>

<ntoskrnl.exe:160771 (ntoskrnl/ke/i386/traphdlr.c:1840 (KiSystemServiceHandler))>

<ntoskrnl.exe:3e2f (:0 (KiFastCallEntry))>

* <ntdll.dll:f485 (dll/ntdll/dispatch/i386/dispatch.S:255 (KiIntSystemCall))>

* <user32.dll:4343f (win32ss/user/user32/windows/defwnd.c:1229 (RealDefWindowProcW))>

* <user32.dll:43d39 (win32ss/user/user32/windows/defwnd.c:1299 (DefWindowProcW))>

* <mciavi32.dll:886a (dll/win32/mciavi32/wnd.c:84 (MCIAVI_WindowProc))>

* <user32.dll:6a9a1 (win32ss/user/user32/windows/wndproc_fixup.S:44 (CALL_EXTERN_WNDPROC))>

* <user32.dll:5ec8f (win32ss/user/user32/windows/message.c:1547 (IntCallWindowProcW))>

* <user32.dll:60ad6 (win32ss/user/user32/windows/message.c:3015 (User32CallWindowProcFromKernel))>

* <ntdll.dll:f3d8 (dll/ntdll/dispatch/i386/dispatch.S:136 (KiUserCallbackDispatcher))>

* <user32.dll:41f9e (win32ss/user/user32/windows/defwnd.c:472 (User32DefWindowProc))>

* <user32.dll:4343f (win32ss/user/user32/windows/defwnd.c:1229 (RealDefWindowProcW))>

* <uxtheme.dll:fce9 (dll/win32/uxtheme/themehooks.c:279 (ThemeDefWindowProcW))>

* <user32.dll:43dbd (win32ss/user/user32/windows/defwnd.c:1305 (DefWindowProcW))>

* <mciavi32.dll:886a (dll/win32/mciavi32/wnd.c:84 (MCIAVI_WindowProc))>

* <user32.dll:6a9a1 (win32ss/user/user32/windows/wndproc_fixup.S:44 (CALL_EXTERN_WNDPROC))>

* <user32.dll:5ec8f (win32ss/user/user32/windows/message.c:1547 (IntCallWindowProcW))>

* <user32.dll:60ad6 (win32ss/user/user32/windows/message.c:3015 (User32CallWindowProcFromKernel))>

* <ntdll.dll:f3d8 (dll/ntdll/dispatch/i386/dispatch.S:136 (KiUserCallbackDispatcher))>

* <user32.dll:4343f (win32ss/user/user32/windows/defwnd.c:1229 (RealDefWindowProcW))>

* <uxtheme.dll:fce9 (dll/win32/uxtheme/themehooks.c:279 (ThemeDefWindowProcW))>

* <user32.dll:43dbd (win32ss/user/user32/windows/defwnd.c:1305 (DefWindowProcW))>

* <mciavi32.dll:886a (dll/win32/mciavi32/wnd.c:84 (MCIAVI_WindowProc))>

* <user32.dll:6a9a1 (win32ss/user/user32/windows/wndproc_fixup.S:44 (CALL_EXTERN_WNDPROC))>

* <user32.dll:5ec8f (win32ss/user/user32/windows/message.c:1547 (IntCallWindowProcW))>

* <user32.dll:5f0a9 (win32ss/user/user32/windows/message.c:1798 (IntCallMessageProc))>

* <user32.dll:5f81a (win32ss/user/user32/windows/message.c:2046 (DispatchMessageW))>

* <mplay32.exe:4263 (base/applications/mplay32/mplay32.c:1554 (wWinMain))>

* <mplay32.exe:5274 (sdk/lib/crt/startup/crt0_w.c:24 (wmain))>

* <mplay32.exe:48fa (sdk/lib/crt/startup/crtexe.c:306 (__tmainCRTStartup))>

* <mplay32.exe:494f (sdk/lib/crt/startup/crtexe.c:157 (wWinMainCRTStartup))>

* <kernel32.dll:11af1 (dll/win32/kernel32/client/proc.c:465 (BaseProcessStartup))>

*** Fatal System Error: 0x0000001e

                       (0xC0000005,0xF6B0DF10,0xF65D5A74,0x00000000)