> I have seen a couple of fairly nice solutions, and lots of really > awful ones. Generally speaking, the awful ones try to go to great > lengths to be sneaky and hide files or other data in places in your > computer they shouldn't be messing with.
Its worth pointing out that most hacker-types know about 'fs_usage' - there's little "hiding" that your app can do without being seen by those who want to know. http://developer.apple.com/DOCUMENTATION/Darwin/Reference/ManPages/man1/ fs_usage.1.html Just make the uninstallation process cumbersome enough that people will want to buy your product rather than uninstall/reinstall once a month. Use a real installer, not just drag+drop, so that your install process can write the expiry info into a file that's checksummed/signed however strongly you like. Then, if that file goes missing (say, someone writes a cron-job that runs once a day to remove your file), require a re-install rather than just recreating it. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
