NSIS 系统 kernel32::LoadLibrary 不搜索 Outdir 或 Path

Question

我正在尝试在我的 NSIS 安装程序中加载和调用 C 库 DLL 的函数。当我尝试加载 DLL 时，发出错误 126 (ERROR_MOD_NOT_FOUND)。

这是我用来测试的最小安装程序脚本：

OutFile Main.exe

ShowInstDetails show

Section
  SetOutPath "C:\Program Files (x86)\MyApp"
  System::Call 'kernel32::LoadLibraryA(m "C:\Program Files (x86)\MyApp\API.dll")i.r0 ? e'
  Pop 
  DetailPrint 
  DetailPrint [=11=]

  System::Call 'kernel32::GetProcAddress(i r0,m "GetVersion")i.r1 ? e'
  Pop 
  DetailPrint 
  DetailPrint 
  System::Call 'kernel32::FreeLibrary(ir0)'
SectionEnd

你可以看到我将outpath设置为DLL所在的位置；它的所有依赖项在哪里。然而，在检查 procmon 中的进程时，我看到只有 Windows 系统目录正在搜索依赖项，而不是 outpath:

Load Image             C:\Program Files (x86)\MyApp\API.dll  SUCCESS                 
CreateFile             C:\Program Files (x86)\MyApp\API.dll  SUCCESS                 
QueryBasicInformationFiC:\Program Files (x86)\MyApp\API.dll  SUCCESS                 
CloseFile              C:\Program Files (x86)\MyApp\API.dll  SUCCESS                 
CloseFile              C:\Program Files (x86)\MyApp\API.dll  SUCCESS                 
Thread Create                                                SUCCESS                 
CreateFile             C:\Windows\syswow64\DEPENDENCY_1.dll  NAME NOT FOUND          
CreateFile             C:\Windows\syswow64\msvcr100.dll      SUCCESS                 
QueryBasicInformationFiC:\Windows\syswow64\msvcr100.dll      SUCCESS                 
CloseFile              C:\Windows\syswow64\msvcr100.dll      SUCCESS                 
CreateFile             C:\Windows\syswow64\DEPENDENCY_2.dll  NAME NOT FOUND          
CreateFile             C:\Windows\syswow64\DEPENDENCY_3.dll  NAME NOT FOUND          
CreateFile             C:\Windows\syswow64\msvcr100.dll      SUCCESS

如何让我的输出路径被搜索以查找依赖项？需要注意的是，"C:\Program Files (x86)\MyApp"也在Path环境变量中，为什么也没有被搜索到呢？

Answer 1

NSIS 中最近的安全更改锁定了允许您从中加载库的位置。可以调用AddDllDirectory添加其他目录：

Section
System::Call 'KERNEL32::AddDllDirectory(w "c:\path")' ; Note: Path must exist at this point
System::Call 'KERNEL32::LoadLibrary(t "c:\path\file.dll")p.r0'
System::Call 'KERNEL32::GetProcAddress(pr0, m "somefunction")p.r1'
${If}  P<> 0
  ...
${EndIf}
System::Call 'KERNEL32::FreeLibrary(pr0)'
SectionEnd

NSIS 系统 kernel32::LoadLibrary 不搜索 Outdir 或 Path

NSIS system kernel32::LoadLibrary does not search Outdir or Path

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