tooltip in VS2005 winform and asp applications

in winform applications, there is a component called "tooltip", which can be referenced by other visual components

in asp.net applications, there is a property called "tooltip" for most of the visual components, which can be used to enter single line tooltipss.
There is a third party tooltip utility called "cooltip", which is much more powerful:
http://www.acooltip.com/index.html#