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I get an error like "Cannot create RarExt.dll"!

You are trying to run WinRAR out of the same folder you want to install the new version in.

The process cannot access the file RarExt.dll because it is being used by another process. Please exit WinRAR and start the installation of the new version again.

If RarExt.dll is still shared by another process, please reboot your computer and start the installation process again.

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