Hi Emerson,

>Here it is: http://www.codeproject.com/KB/miscctrl/XSuperTooltip.aspx

Whew, that is an MFC class. I'm not sure if you can combine MFC and a FLL since they are using different calling conventions and rely on the respective loader code. It might be possible to compile this into a DLL, but even then it's open whether the DLL would link to existing windows, or just MFC windows. If if it would, it seems to only bind to a window handle meaning you can either have the tooltip appear for ActiveX controls or the form itself.

I would think that it might actually be easier to write this code yourself. You could use the CreateWindow API function instead of a form to create the tooltip window. With BINDEVENTS() you should still be able to handle window messages.