You could probably take the shotgun approach to killing the problem(s) by installing the latest MDAC from Microsoft. You can find that here[^]. RageInTheMachine9532

I just found the answer for this problem Microsoft Knowledge Base Article - 235355 I post it here for reference in case somebody else has to deal with this. The Microsoft article says this behaviour is by design, and SYSTEMTIME should be used instead of CTime class Best, Alfredo

Carlos, Thanks for your reply, well I just created it with no code. I mean I put it on my form dragging the control. But I just saw that msdn sample and here is the code, still doesn't work in that way. BOOL CMonthCalPage::OnInitDialog() { CPropertyPage::OnInitDialog(); CWnd *pFrame = GetDlgItem(IDC_MCFRAME); CRect rcWnd; pFrame->GetClientRect(rcWnd); pFrame->DestroyWindow(); //pFrame was just a placeholder anyway. m_MonthCal.Create(WS_CHILD|WS_VISIBLE,CPoint(rcWnd.left,rcWnd.top),this,IDC_MONTHCAL); UpdateData(FALSE); return TRUE; } Thanks for helping Alfredo Best, Alfredo