我在使用ntsd调试程序时，发现ntsd加载不了dll，奇怪了，那些dll在system32下都能找到的。具体现象如下：
Microsoft (R) Windows User-Mode Debugger Version 5.1.2600.0
Copyright (c) Microsoft Corporation. All rights reserved.
CommandLine: page_heap.exe /CorruptAfterEnd
Loaded dbghelp extension DLL
The call to LoadLibrary(ext) failed with error 2.
Please check your debugger configuration and/or network access
Loaded exts extension DLL
The call to LoadLibrary(uext) failed with error 2.
Please check your debugger configuration and/or network access
Loaded ntsdexts extension DLL
Symbol search path is: *** Invalid *** : Verify _NT_SYMBOL_PATH setting
Executable search path is:
ModLoad: 00400000 0042f000 page_heap.exe
ModLoad: 7c920000 7c9b4000 ntdll.dll
ModLoad: 7c800000 7c91d000 C:\WINDOWS\system32\kernel32.dll
ModLoad: 37000000 37012000 C:\WINDOWS\system32\EntApi.dll
ModLoad: 77da0000 77e49000 C:\WINDOWS\system32\ADVAPI32.dll
ModLoad: 77e50000 77ee2000 C:\WINDOWS\system32\RPCRT4.dll
ModLoad: 77fc0000 77fd1000 C:\WINDOWS\system32\Secur32.dll
ModLoad: 77be0000 77c38000 C:\WINDOWS\system32\MSVCRT.dll
ModLoad: 77d10000 77d9f000 C:\WINDOWS\system32\USER32.dll
ModLoad: 77ef0000 77f37000 C:\WINDOWS\system32\GDI32.dll
ModLoad: 76bc0000 76bcb000 C:\WINDOWS\system32\PSAPI.DLL
ModLoad: 5fdd0000 5fe24000 C:\WINDOWS\system32\NETAPI32.dll
ModLoad: 76300000 7631d000 C:\WINDOWS\system32\IMM32.DLL
ModLoad: 62c20000 62c29000 C:\WINDOWS\system32\LPK.DLL
ModLoad: 73fa0000 7400b000 C:\WINDOWS\system32\USP10.dll
ModLoad: 48000000 4801e000 C:\PROGRA~1\Google\GOOGLE~1\GOEC62~1.DLL
ModLoad: 71a20000 71a37000 C:\WINDOWS\system32\WS2_32.dll
ModLoad: 71a10000 71a18000 C:\WINDOWS\system32\WS2HELP.dll
please intput a int :
1
eax=77c0f88a ebx=00000000 ecx=77c0e9f9 edx=77c31a70 esi=7c92e88e edi=00000001
eip=7c92eb94 esp=0012fe54 ebp=0012ff50 iopl=0 nv up ei pl zr na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246
*** ERROR: Symbol file could not be found. Defaulted to export symbols for ntdl
l.dll -
ntdll!KiFastSystemCallRet:
7c92eb94 c3 ret
