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How do I create a default association for files with an unknown extension in Windows 7?

Fresh5 days ago
Mar 15, 20262216 views
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Problem

It used to be possible to set and then any unknown files would open with the specified program instead of seeing that “Open With...” dialog box. This applies to files with no extension, as well as files with or or whatever. This page explains how: Vim Tip 185 Does Windows 7 let you do this?

Error Output

HKEY_CLASSES_ROOT\Unknown\Shell\Open\Command

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Fix for: How do I create a default association for files with an unknown extension in Windows 7?

Low Risk

It's still possible to do it this way. However, you must also set the default command for the key. By default is probably , but you can change it. Just set default value to . Also, when you change keys those writes will be directed to their actual l…

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