ProAdvisors: You can find your establishment codes on the ProAdvisor Software and Licenses page (login required).If you buy into one of our months to month or yearly item memberships, search for the satisfaction email you got with the permit and item numbers for the most recent rendition of QuickBooks (applies to Canada as it were).If you obtained QuickBooks on a CD, search for the splendidly shaded sticker on the first CD envelope.For a downloaded item bought on the web or from a business specialist, look in the buy affirmation email you got from Intuit.Create or Re-create the qbregistration.dat file.Locate your license and product numbers.