How to call DLL methods in c++. Dll is build in C#

typedef int (FAR PASCAL *RUNSCRIPT_FUNCTION)(int, LPCSTR);

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdParam, int nCmdShow)
{
    RUNSCRIPT_FUNCTION  RunScript;
    int  iReturn;

    // Load the DLL
    HINSTANCE hinstLib = LoadLibrary("C:\\Program Files\\Example.dll");
    if(hinstLib == NULL)
    {
        MessageBox(NULL, "Unable to load library", "Error", MB_OK|MB_ICONERROR);
        return 0;
    }

    // Get the function pointer
    RunScript = (RUNSCRIPT_FUNCTION)GetProcAddress(hinstLib, "RunScript");
    if(RunScript == NULL)
    {
        FreeLibrary(hinstLib);
       
        return 0;
    }
    
    // Call the function with '1' as a parameter
    iReturn = (*RunScript)(1, "Hello");

    // Unload the DLL
    FreeLibrary(hinstLib);
    
    return iReturn;
}