Plugin not Recognized by NSIS

[parasoul]

Hello,
I'm compiling a NSIS plugin in Watcom using C++. I'm exporting a simple NSIS function:

PHP Code:

#define NSISFUNC(name) extern "C" void __declspec(dllexport) name(HWND hWndParent, int string_size, int* variables, stack_t** stacktop, extra_parameters* extra)
NSISFUNC(Test)
{
MessageBox(0,"test",0,0);
} 


The export is showing in CFF Explorer:
http://i.gyazo.com/af29352caf9ab10d58a55c630cb4ca9b.png

The file is being built as a DLL:
http://i.gyazo.com/bfb0566d76a126c6d060e06a9bcc931e.png

when I try to compile:

Name: "Memento"
OutFile: "Memento.exe"
XPStyle: on
ShowInstDetails: show
Section: ""
Invalid command: Test::Test

I'm 100% positive Test.dll is in the correct directory

I'm not sure exactly how NSIS's compiler resolves a plugin function, but I assume that it looks for the presence of the DLL -> make sure that it's a DLL -> presence of an export matching the function name -> done

Any idea what the problem is here?

Here's a download to Test.dll:
https://www.sendspace.com/file/4kz9ip

Many thanks