📎 AI Summary:
The thread discusses how to change the default icon for all files with the *.dat extension in Windows Explorer and whether an icon of 256x256 pixels automatically resizes to fit Windows 7. The original poster inquires about the need for specific icon sizes and how Windows handles resizing. A responder provides a link to a relevant Microsoft forum thread about changing file association icons, but without directly answering the specific questions about icon sizes or resizing behavior. Overall, the conversation centers on customizing file icons and understanding Windows' handling of icon sizes, with a focus on Windows 7.
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pstein

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Mar 20, 2010
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Thread Author #1
I want to change the default icon in Windows Explorer for all files with the extension *.dat.

How can I do this?

Related question:
Is it required to have a new icon with a certain size at hand?

Assume I have an icon file "newicon.ico" with a dimension 256x256 available and assign this somehow to the *.dat extension files. Does Windows 7 automatically resize this original icon to the smaller size?

Or do I have to supply a different size (which ?) icon because there is no auto-resizing?

Peter
 

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Mike

Mike

Windows Forum Admin
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Jul 22, 2005
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#2
http://answers.microsoft.com/en-us/...xtension/4a46d2cf-405a-4e17-8158-69981531382b

It is currently based off the program designed to open the application. Remember, there was a time where you could not open a file by double clicking on it (This was before file associations in Windows). You'd literally have to open the program first and navigate to the file.
 

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