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If you hover a folder in Windows 7 you are getting something like the image below. Is there a way to change what this tooltip contains?

enter image description here

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up vote 2 down vote accepted

One method that requires no programming is to use Desktop.ini to create an infotip that displays custom information about the folder and controls some aspects of the folder's behavior.

This blog post outlines how to use them: http://msdn.microsoft.com/en-us/library/windows/desktop/cc144102.aspx

Desktop.ini file behaviors are generally inherited so the behavior can be applied to one or many folders, depending on where you place it.

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nice. Can this include actual data? Filesize, no of files, last modified or other properties? – Odys Mar 21 '12 at 8:12
    
To display dynamic data you would probably need to create and install a shell extension. – hemp Mar 22 '12 at 22:43
    
Thanks. Any examples of related projects? – Odys Mar 23 '12 at 10:03
    
@Odys, C++ Windows Shell infotip handler. I wouldn't go into this expecting it to be super easy. Explorer shell extensions carry a lot of legacy baggage. – hemp Mar 29 '12 at 3:31
    
thank you sir! I mark this answer as correct because of this comment – Odys Mar 29 '12 at 11:53

Use the the windows registry editor (Start > Run > regedit) and navigate to

HKEY_CLASSES_ROOT \ *

It contains a value named InfoTip. Modify it to add or remove variable entries. For example, I added System.ItemNameDisplay to the top of the default list:

prop:System.ItemNameDisplay;System.ItemTypeText;System.Size;System.DateModified

refer also to http://www.ghacks.net/2008/02/10/customize-windows-explorer-tooltips/

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