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This is because, on Windows, you can't double click a 7z file and have it open 7zip. If they fixed that, they'd have a winner.

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If you have .7z files associated with 7z File Manager, it will open on double click. Is that not the default on installation?

It is the default. It's always worked for me just fine.

You are so lucky. I've installed on every Windows machine I've had for years and have never had it work out of the box. I've got to right-click a .7z and choose open with -> 7zip.

I'll take a look at my setup when I get home tonight.

You can change the associations in the program settings but you have to be in administrator mode, otherwise they don't stick. http://www.7-zip.org/faq.html

It doesn't associate on setup. You have to open 7zip, go to options and you see this http://i.imgur.com/12dpE7G.png

I usually click "Select all" then unselect ISO. Done.

Edit: other person replied it must be opened in Administrator mode. That explains why I didn't have it associated.

You double click on the file and Windows shows two 7zip programs as an option.

If you choose the wrong one it will not work later.

And it will not repeat the dialog box with the options.

On HN you're probably expected to be able to change file associations when you don't like them.

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