BadImageFormatException
<p>i was working with invoking C++ Dlls into C# and ran into a problem</p>

<p>C++ function:</p>

<pre><code>    int _declspec(dllexport) CompressPacket(unsigned char *buff, int offset, int len);
</code></pre>

<p>C# function:</p>

<pre><code>    [DllImport("HuffCompress.dll")]
            private static extern unsafe int HuffCompress(ref byte[] buff, int offset, int len);

    ...

    private unsafe byte[] CompressPacket(byte[] packet)
    {
        int len = HuffCompress(ref packet, 12, packet.Length-12);
        byte[] compressed = new byte[len];
        for (int i = 0; i &lt; len; i++)
            compressed[i] = packet[i];
        return compressed;
    }
</code></pre>

<p>when</p>

<p><code>int len = HuffCompress(ref packet, 12, packet.Length-12);</code></p>

<p>is run, i get a BadImageFormatException</p>

<p>As the C# editor is the VSC# Express, it doesn't compile 64 bit programs, so i'm unsure to the problem
Any ideas would be great</p>
