Strange stack variable corruption error after calling extern(C) function

[cc via Digitalmars-d-learn]

On Wednesday, 4 May 2016 at 09:40:55 UTC, Benjamin Thaut wrote:
> On Tuesday, 3 May 2016 at 19:06:30 UTC, cc wrote:
>>
>> it fails to link with "Error 42: Symbol Undefined 
>> _FMOD_System_CreateSound at 20".  With extern(C) it compiles and 
>> runs but the problem from above persists.
>
> Is this on Windows x64? Try replacing FMOD_RESULT by int. When 
> declaring the fmod create sound function and see if that helps.

The OS is Win64 though the program is being compiled as 32-bit 
and I'm using the 32-bit distributed DLL.
fmod.dll: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Tried int and long as the return type, same issue both ways.  
Tried void too just in case, same thing though.