@GRayL
It's not an ActiveX control, so it avoids all the OCX/DLL hell associated with ActiveX controls. So no, it doesn't have a properties sheet.
@mvasilevsky
Insert this line near the end of the Sub CreateDTPControl, just before the call to ReDraw:
Call apiSendMessage(m_hWndDTP, MCM_SETFIRSTDAYOFWEEK, ByVal 0&, ByVal 0&)
The last argument indicated the day of the week: 0=Monday, 1=Tuesday, etc
--
Graham