LoadLibrary 在 Win7 32 位上失败，在 Win XP 32 位上成功

发布于 2024-11-08 07:03:01 字数 583 浏览 0 评论 0原文

我正在尝试将第 3 方 dll（即我没有源代码）加载到我的应用程序中。在 Windows XP 32 位系统上，它可以正常加载，但在 Windows 7 系统上，它无法加载，引用来自 GetLastError() 的错误 #998

我使用 dll 导出查看器来查看 dll 的导入和导出符号，并观察到导入表中列出的除 3 个 dll 之外的所有文件均来自该第 3 方供应商。没有的有：
kernel32.dll
mingwm10.dll
msvcrt.dll

这是我用来执行导入的代码：

SetDllDirectory(L"c:\\dlls");
HMODULE tempDLL = LoadLibrary(L"mydll.dll");
DWORD err = GetLastError();

请问有关如何调试此代码的任何提示？

编辑：感谢大家的回答，这是我迄今为止发现的：
a) 应用程序工具包并没有被证明是那么有用（见下文）
b) 同事 A 可以在他的 win 7 机器上加载 dll，而同事 B 则不能，所以它是零星的
c) 以管理员身份运行没有改变任何东西

原文

I am trying to load a 3rd party dll (i.e. I have no source code) into my application. On a windows xp 32 bit system, it loads fine, but on a windows 7 system it fails to load, citing error #998 from GetLastError()

I used a dll export viewer to view the imported and exported symbols of the dll, and observed that all but 3 dlls listed in the import table came from this 3rd party vendor. The ones that didn't are:
kernel32.dll
mingwm10.dll
msvcrt.dll

Here is the code I am using to do the import:

SetDllDirectory(L"c:\\dlls");
HMODULE tempDLL = LoadLibrary(L"mydll.dll");
DWORD err = GetLastError();

Any tips on how to go about debugging this, please?

Edit: My thanks to everyone for the answers, and this is what I have discovered so far:
a) The application toolkit package did not prove to be that useful (see below)
b) Colleague A can get the dll to load on his win 7 machine and colleague B cannot, so it something sporadic
c) Running as admin did not change anything

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