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Hi,

I just updated to Fmod 1.06 (from fmod 1.05.06), and when running my 64 bit C# app, a System.BadImageFormatException is thrown when trying to intialize the system with FMOD_Studio_System_Create(out rawPtr, VERSION.number). It works fine in 32 bit.

I have both fmod.dll and fmod64.dll in the target working directory.

Is anybody else getting the same problem?

Cheers,
Nick

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Best Answer
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In your project properties (right click the project in solution explorer and select ‘properties’) and add WIN64 to the ‘conditional compilation settings’ under the ‘build’ tab.

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Sorry for the late reply.

I am now using 1.06.01. When compiling the 64 bit version, WIN64 is defined.

On startup of the 64 bit version, it crashes in fmod_studio.cs, line 551 with a System.BadImageFormatException. This is the line of code it crashes on:

result = FMOD_Studio_System_Create(out rawPtr, VERSION.number);

At that location in the code VERSION.number is 67073. VERSION.dll is “fmod64”.

Any ideas?
Cheers,
Nick

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I think I found the problem. In fmod_studio.cs there’s the following lines:

public class STUDIO_VERSION
{
    public const string dll    = "fmodstudio.dll";
}

This should be:

public class STUDIO_VERSION
{
#if WIN64
    public const string dll    = "fmodstudio64.dll";
#else
    public const string dll    = "fmodstudio.dll";
#endif
}
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