calling unmanaged c++ dll from c#

I'm trying to call an unmanaged c++ dll from a c# windows form application, but I'm getting a DLLNotFoundException. The dll is in my project folder, and my code calling it is:

Code:

---

[DllImport("id3libBuilder.dll")]
        private static extern void createMediaLibrary ( string src );

---

I don't know why it can't find the dll. The code seems pretty straightforward. Can anyone help?

I often encounter problems like this when I call a C++ DLL from Visual Basic. When this hppens, i just use the absolute path of the said dll.

c:\project\finkus\sucks\myballs\andlikesit\verymuc h.dll

or something like that ;)

It should work fine for C# too.