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	Science Forum Forum Index » Computer Science » Limited-time trials...  Limited-time trials... « View previous topic :: View next topic »  Author Message Chemboy Posted: Wed Mar 19, 2008 8:43 pm    Post subject: Limited-time trials... Forum Ph.D. Joined: 01 Jul 2006 Posts: 1049 Location: NY How does a limited-time trial version of a software know when the time has elapsed, even after un- and re- installing it? I don't know too much about computers, but I don't see how it can know after it's been uninstalled... _________________ "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges Back to top KALSTER Posted: Thu Mar 20, 2008 9:38 am    Post subject: Forum Professor Joined: 08 Sep 2007 Posts: 1957 Location: South Africa The simple answer is that a record of the installation date is kept, even after uninstalling the trial software. When the software is installed it automatically looks for the existence of such a record and stops the installation if it finds it or reverts to the expired screen after re-install. What works sometimes with programs you can permanently activate by purchasing a key, is choosing a different install directory to the default one. Or you can look for a key online... _________________ "Gullibility kills" - Carl Sagan Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First     Page 1 of 1 Science Forum Forum Index » Computer Science » Limited-time trials... Jump to: Select a forum Natural Sciences----------------Astronomy & CosmologyBiologyChemistryEarth SciencesMathematicsPhysics People----------------Behavioral & Social SciencesHealth & MedicinePhilosophical DiscussionHistoryReligionPoliticsCriminology and Forensic Science General Technology----------------Computer ScienceElectronicsMilitary Technology Information Technology----------------Business & EconomicsEducationEngineering & Transportation International Issues----------------Environmental IssuesIn the News The Science Forum----------------General DiscussionIntroductionsScience-Fiction and Non-FictionExperimentationPseudoscienceLinksArt and Culture Site Administration----------------Site FeedbackTrash Can  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
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