The AspLib ToolTip is an easy-to-use, professional on-line context help tool for ASP.NET applications that allows developers to easily add in-page help for end-users. The end user just sees an image or text and they see pop-up or windowed context help that explains a page element. The tips can localize themselves automatically using application culture settings. The built in ToolTip editor allows to create and edit helps easily. The tip can have the shadow. The ToolTip uses AJAX technology and help tips are displayed without the need to load anything from the server. Specify how the ToolTip opens - with a click on a Help button, with a click on the related form element (e.g. a TextBox or TextArea), by pressing the F1 key, or when the pointer rolls over the Help button. ASP.NET AJAX supports and rich client side API.