With a perpetual license, it does not expire until such time as you no longer have a computer it will run on.Jeff, this is not the case in the European Union.See: <a href="http://curia.europa.eu/jcms/upload/docs/application/pdf/2012-07/cp120094en.pdfIn">http://curia.europa.eu/jcms/upload/docs/application/pdf/2012-07/cp120094en.pdfIn</a> the EU we buy the software license we own it and can resell it.