Exception when SDLToWin32Test window close, why?

SDL Development
1

hi,
vs2010 win32, and SDL-1.2.15
win8(x64), but visual studio(x86)

Unhandled exception at 0x777df44d in SDLToWin32Test.exe: 0xC000041D: ???.
First-chance exception at 0x777df44d in SDLToWin32Test.exe: 0xC0000005: Access violation reading location 0x0426ffff.
Unhandled exception at 0x777df44d in SDLToWin32Test.exe: 0xC000041D: ???.
First-chance exception at 0x777df44d in SDLToWin32Test.exe: 0xC0000005: Access violation reading location 0x0426ffff.
Unhandled exception at 0x777df44d in SDLToWin32Test.exe: 0xC000041D: ???.

@sun_wei_at_cdv.com