Hi all

Recently i have created an application in c# using visual studio 2008 and deployed it by adding a new setup and deployment project.


Now i want to do two more things

1) i want my application to expire after a certain period of time e.g 30 days.

2) i want my setup to be executed only once.i.e once the application is installed the setup should no longer to executable after the first installation.This might not be a very good approach but i have a situation where this is my one of the most important requirement.


Plzz must reply and with detail because i am not very good at understanding thing pretty quickly and also not good in setup and deployment.

---

C# lover

Hi sohail Khaliq,

There is no well known method to expire your application. Microsoft Windows Activate technology has patent. We even don't know how it is made. Here is some way I think you can take.
1. When your application is run, check a special register key. If it doesn't exist, write the key into the register with the current date time.
2. If the key is there but the date time is 30 days ago, tell your user to buy a new product ID. If he can enter the correct id, update that register key to the currect day.
3. Don't tell your user where the register key is, otherwise they can make one by themselves.
4. Setup project cannot restrict user from installing it only once.

If you have anything unclear, please feel free to tell me.

Sincerely,
Kira Qian

---

Please mark the replies as answers if they help and unmark if they don't.

Hi sohail Khaliq,

There is no well known method to expire your application. Microsoft Windows Activate technology has patent. We even don't know how it is made. Here is some way I think you can take.
1. When your application is run, check a special register key. If it doesn't exist, write the key into the register with the current date time.
2. If the key is there but the date time is 30 days ago, tell your user to buy a new product ID. If he can enter the correct id, update that register key to the currect day.
3. Don't tell your user where the register key is, otherwise they can make one by themselves.
4. Setup project cannot restrict user from installing it only once.

If you have anything unclear, please feel free to tell me.

Sincerely,
Kira Qian

---

Please mark the replies as answers if they help and unmark if they don't.