Hi Hunter.
Once you have downloaded & used 4.13, you will have to do a search on your computer and delete all Limewire files including Prefetch files, Then you can use
an older version again.
Follow these instructions exactly.
So, you need to Go, Start/All Programs/LimeWire n Uninstall all L/W versions.
Do Not Uninstall From Change or Remove Programs.
Re BOOT Your computer NOW.
Now Go to, Start/Search/click on all files n folders/more advanced options/
& make sure, case sensitive, is not ticked. (all other boxes should be ticked)
Now!!, Put limewire in box, (all or part of file name) & click search.
Delete everything found, including Prefetch folder, (I mean everything)
Re BOOT Your computer NOW.
Now!! Use this link to download latest L/W version using the off line installer
LimeWire
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Peace