6.52 64-bits Win7上执行32-bits应用程序碰上0xC000007B错误

https://scz.617.cn/windows/201204051418.txt

Q:

在64-bits Win7上用Visual C++ 2010 Express编译了一个32-bits的curl.exe，其用
到了msvcr100.dll。为了使用上的方便，我将c:\windows\system32\msvcr100.dll复
制到curl.exe所在目录。

将这份绿色版的curl.exe复制到另一台64-bits Win7上执行，得到错误信息:

    应用程序无法正常启动(0xc000007b)。请单击"确定"关闭应用程序。

> cdb.exe -snul -hd -o curl.exe
ModLoad: 00000000`01230000 00000000`0126a000   image00000000`01230000
ModLoad: 00000000`77940000 00000000`77ae9000   ntdll.dll
ModLoad: 00000000`77b20000 00000000`77ca0000   ntdll32.dll
ModLoad: 00000000`75600000 00000000`7563f000   C:\Windows\SYSTEM32\wow64.dll
ModLoad: 00000000`755a0000 00000000`755fc000   C:\Windows\SYSTEM32\wow64win.dll
ModLoad: 00000000`75590000 00000000`75598000   C:\Windows\SYSTEM32\wow64cpu.dll
(534.b8c): Break instruction exception - code 80000003 (first chance)
ntdll!LdrpDoDebuggerBreak+0x30:
00000000`779ecb60 cc              int     3
0:000> sxe 0xC000007B
0:000> g
ModLoad: 00000000`77720000 00000000`7783f000   WOW64_IMAGE_SECTION
ModLoad: 00000000`76270000 00000000`76380000   WOW64_IMAGE_SECTION
ModLoad: 00000000`77720000 00000000`7783f000   NOT_AN_IMAGE
ModLoad: 00000000`77840000 00000000`7793a000   NOT_AN_IMAGE
ModLoad: 00000000`76270000 00000000`76380000   C:\Windows\syswow64\kernel32.dll
ModLoad: 00000000`772e0000 00000000`77326000   C:\Windows\syswow64\KERNELBASE.dll
ModLoad: 00000000`754c0000 00000000`75504000   C:\Program Files\Green\libcurl.dll
ModLoad: 00000000`75c90000 00000000`75cc5000   C:\Windows\syswow64\WS2_32.dll
ModLoad: 00000000`75e80000 00000000`75f2c000   C:\Windows\syswow64\msvcrt.dll
ModLoad: 00000000`758c0000 00000000`759b0000   C:\Windows\syswow64\RPCRT4.dll
ModLoad: 00000000`75680000 00000000`756e0000   C:\Windows\syswow64\SspiCli.dll
ModLoad: 00000000`75670000 00000000`7567c000   C:\Windows\syswow64\CRYPTBASE.dll
ModLoad: 00000000`773c0000 00000000`773d9000   C:\Windows\SysWOW64\sechost.dll
ModLoad: 00000000`75800000 00000000`75806000   C:\Windows\syswow64\NSI.dll
ModLoad: 00000000`75d70000 00000000`75db5000   C:\Windows\syswow64\WLDAP32.dll
ModLoad: 00000000`75390000 00000000`754b1000   C:\Program Files\Green\LIBEAY32.dll
ModLoad: 00000000`77540000 00000000`775d0000   C:\Windows\syswow64\GDI32.dll
ModLoad: 00000000`775d0000 00000000`776d0000   C:\Windows\syswow64\USER32.dll
ModLoad: 00000000`75cd0000 00000000`75d70000   C:\Windows\syswow64\ADVAPI32.dll
ModLoad: 00000000`77af0000 00000000`77afa000   C:\Windows\syswow64\LPK.dll
ModLoad: 00000000`761c0000 00000000`7625d000   C:\Windows\syswow64\USP10.dll
ModLoad: 00000000`752b0000 00000000`75382000   C:\Program Files\Green\MSVCR100.dll
ModLoad: 00000000`751d0000 00000000`752a2000   C:\Program Files\Green\MSVCR100.dll
ModLoad: 00000000`752b0000 00000000`75382000   C:\Program Files\Green\MSVCR100.dll
ntdll!NtTerminateProcess+0xa:
00000000`779915da c3              ret
0:000>

用cdb.exe进行调试，未能捕捉0xC000007B异常，仍然直接得到前述错误信息。

A:

0xC000007B错误通常是因为32-bits应用程序试图加载64-bits动态链接库，或者反过
来。用depends.exe查看curl.exe，发现其试图加载64-bits的msvcr100.dll。

应该从C:\Windows\SysWOW64\复制32-bits的msvcr100.dll。