Month View
BCGControlBar Pro (MFC)
BCGSuite (MFC)
BCGControlBar for .NET
The planner control can display a month with all events that belong to this time period.
Sample code:
CBCGPPlannerManagerCtrl m_wndPlanner;
m_wndPlanner.SetType (CBCGPPlannerManagerCtrl::BCGP_PLANNER_TYPE_MONTH);