OLE Drag and Drop

• How to drag item(s) from a listbox into the grid
  
  
• How can the user drag and drop cells in 16-Bit?
  
  
• My application asserts in COleDropTarget::Register
  
  
• Is there any way that I can force what would normally be an OLE Move to be an OLE Copy?
  
  
• How can I enable dragging cells with right mouse button and display a popup-menu when the user release the mouse button? In the popup-menu I would like the user to give the option to copy or move the cells.