Is there any way to program hover over behavior for files shown in windows explorer?

I want to pop up my own label when mouse hovers over a开发者_如何学运维 directory/file in windows explorer. How to do this?

This is done by creating a Shell Extension of the Infotip handler variety.

These two URLs will help you, at least if you can map the Win32 C++ stuff to Python. (Sorry, I don't know much about Python to know how easy that part is.)

• MSDN: Creating Shell Extension Handlers

• CodeProject: The Complete Idiot's Guide to Writing Shell Extensions