Providing trial period for an product
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Hi all, We developed a product. We have to provide trail period(10days) for that product. For that we tried in the following way. At installation of our product we are storing the 10th day date from installation date into system registry. and we are checking date every time when user logins if(DateTime.Now<=registrydate) //Continue else //Close the application MessageBox.Show("The trail period is completed"); Application.Exit(); This works fine until user changes System DateTime. I wants to avoid that also, even though if user changes System date it should work only for 10days. Plz suggest me how to do that. Thanks in advance...
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Hi all, We developed a product. We have to provide trail period(10days) for that product. For that we tried in the following way. At installation of our product we are storing the 10th day date from installation date into system registry. and we are checking date every time when user logins if(DateTime.Now<=registrydate) //Continue else //Close the application MessageBox.Show("The trail period is completed"); Application.Exit(); This works fine until user changes System DateTime. I wants to avoid that also, even though if user changes System date it should work only for 10days. Plz suggest me how to do that. Thanks in advance...
Keep track of the date your application was last accessed. If the date is less than last time application was opened, you can calculate actual trial period remaining. What if the user just deletes the registry entry and re installs the application? This will make your application like a free version. You can also try out Trial Creator[^] If you wish to.
Time is the best teacher; unfortunately it kills all of its students. जय हिंद
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Keep track of the date your application was last accessed. If the date is less than last time application was opened, you can calculate actual trial period remaining. What if the user just deletes the registry entry and re installs the application? This will make your application like a free version. You can also try out Trial Creator[^] If you wish to.
Time is the best teacher; unfortunately it kills all of its students. जय हिंद
What if the user just deletes the registry entry and re installs the application? This will make your application like a free version.He have to enter the key, this will be supplid by us. My problem is What if user changes the System date, by clicking on TaskBar SystemTray Icon(Time). I wants solution for that. -
Hi all, We developed a product. We have to provide trail period(10days) for that product. For that we tried in the following way. At installation of our product we are storing the 10th day date from installation date into system registry. and we are checking date every time when user logins if(DateTime.Now<=registrydate) //Continue else //Close the application MessageBox.Show("The trail period is completed"); Application.Exit(); This works fine until user changes System DateTime. I wants to avoid that also, even though if user changes System date it should work only for 10days. Plz suggest me how to do that. Thanks in advance...
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Hi, Thanks for your suggestion. But our company not interested to buy such tools/softwares. Is not possible by c# coding?