多页浏览器TheWorld与maxthon一样，也经常cpu达到100%，然后无响应，只有杀进程。。。。。

进程终于看到是它的这个线程占的cpu:
ntdll.dll!RtlHashUnicodeString+0x27f

堆栈：
ntoskrnl.exe+0x20861
TheWorld.exe+0x40c68
WS2_32.dll!closesocket+0x47
TheWorld.exe+0x4230e
WININET.dll!GetFileExtensionFromUrl+0x379d
WININET.dll!GetFileExtensionFromUrl+0x421d
WININET.dll!SetUrlCacheEntryInfoA+0x1305
WININET.dll!SetUrlCacheEntryInfoA+0xc21
SHLWAPI.dll!Ordinal174+0x82
ntdll.dll!RtlFinalReleaseOutOfProcessMemoryStream+0x216
ntdll.dll!RtlReleaseActivationContext+0x9f
ntdll.dll!RtlFinalReleaseOutOfProcessMemoryStream+0x24b
ntdll.dll!RtlReleaseActivationContext+0x122
kernel32.dll!GetModuleFileNameA+0xeb