I don't think my installer would uninstall your old version of FrostWire by default, but it will use your setting where the preferences folder is on your system! If you install the new version on the same directory and same plase where you have the old one it will only overwrite it if the files in my installer is newer then the FW you have installed before...What you can do is take a backup of the old version before you install the new one, so you could easy restore the old one with out have to install it again so to speak!

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