Html ToolTip

Hi!

Could you show a valid sample of ToolTip with rendered html?
I am trying to show my tip and have got content of the tip displayed but not rendered:

var tip = new ToolTip();
tip.AllowHtml = true;

…

this.Control = new PictureBox(); // this.Control is a ‘Control’ property of DataGridViewImageCell

…
tip.SetToolTip(this.Control, “<p><strong>some tip for user</strong></p>”);

Thanks in advance for any help!
Stanislav