How do you convert this function (C++) to vb6

[takhimi]

Hi guys, i`m stuck here. I`m using a DLL developed from VC++ to be use with VB6. This is a function that i`m stuck. It crashed when i call the function

VC++ (Protocol.dll)
Protocol_API READERERROR WINAPI SelApp(WORD Size, LPBYTE AID, LPBYTE Response,uint16 slot);


VB6
Declare Function SelApp Lib "Protocol.dll" Alias "_SelApp@16" (ByVal Size As Integer, ByVal AID As String, ByVal Response As String, uint16 As Long) As Long

Please help me

Thanks.