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Problem loading DLL

I have a C# program that loads another DLL:

[DllImport("Test.dll", EntryPoint = "Start")]
public unsafe static extern void TestStart();

Test.dll is written in C++ and contains an "empty" function that does nothing:

extern "C" __declspec(dllexport) void Start();

The program runs fine on multiple Windows machines, including a Windows 2000 desktop. However, when I tried executing this program on this Windows 2000 laptop, it throws the following exception:

Unable to load DLL 'Test.dll': The specified module
could not be found. (Exception from HRESULT: 0x8007007E)

Additional Information:

- .NET Framework 1.1/2.0 are installed on the Windows 2000 laptop.
- All executables are run from local hard disk.
- The C# program is compiled with Visual Studio 2005.
- Test.dll is compiled with Visual Studio 2003.

Anyone knows why this program wouldn't run on the laptop?

Thanks!

SOLUTION

angus_young_acdc

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james567

ASKER

Test.dll is a simplified test case so it does not reference anything. It's placed in the same directory as the C# executable. The same configuration worked on other machines but just not this laptop.

In fact, another C# program that loads a C++ DLL also failed to execute on that machine. It looks like the C# program on that machine is not able to load any C++ DLLs. It can, however, load DLLs written in C# without problems.

Trust level for assemblies located on local disk is set to full trust.

Regards,

James

ASKER CERTIFIED SOLUTION

Manjesh