extern "C" __declspec( dllexport ) __stdcall int EP_RegKeyCreationDateEx();

function EP_RegKeyCreationDateEx : Cardinal;

Public Declare Function EP_RegKeyCreationDateEx Lib "enigma_ide.dll" () As Long

public class Enigma_IDE
{
    [DllImport("enigma_ide.dll", CallingConvention = CallingConvention.StdCall)]
    public static extern int EP_RegKeyCreationDateEx();
}