I use a Wintree control in outlookexpress mode. The cells in the tree do not wrap text automatically, instead we have provided an option display the entire cell text in tooltip. 

But when the text is too long the tool tip box is getting stretched outside the tree control. Is there a way we can decide the tooltip box width? 

Or is there a way we can avoid tooltip box extending outside to the tree control?

Thanks in advance.

Krishna