Run-Time Check Failure

Hi ,
   i m going to make a Skype Pluign .but when i m recieving a chat
message from my friend it is coming in this OnMessageReceived function
(Event ).but when i m trying SkypeMessage->GetBody(); it is giving
this error :

Run-Time Check Failure #0 - The value of ESP was not properly saved
across a function call. This is usually a result of calling a
function declared with one calling convention with a function pointer
declared with a different calling convention.
i went many site to resolve this problem but i cud not get the
solution.

HRESULT CSkypeTestCPPDlg::OnMessageReceived(struct IMessage *
SkypeMessage)
{

    _bstr_t bstrBody = "";
    DWORD d;
    try
    {
        bstrBody = SkypeMessage->GetBody();//Run-Time Check Failure #0
    }
    catch(...)
    {
        d = GetLastError() ;
    }

    return 0;
}

one of support.microsoft.com site has given this solution i can
understand only the third one .

You receive this error message when the following conditions are true:
=95 You call a function that does not use the __cdecl modifier.
=95 The function contains parameters that are larger than 64 kilobytes
(KB).
=95 You compile your application in the Debug mode and with the /RTCs
compiler option enabled.

if some one know how about this solution plz forword it to me .thx in
advance