how to set prouct key during installation

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I developed a windows application project and flexible in convert to .exe file but i want user need to give Product installation key during installation. how to achieve this? i used c#.net

Posted 14-Dec-12 17:44pm

Umapathi K

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**AmitGajjar** · Answer 1 · 2012-12-14T18:12:00

Solution 1

Hi,

There are many ways, let me give you idea about normal scenario.

1) after installation and for the first time user open the software check for the corresponding key is available in registry ?
2) if no key is available then get some computer hardware information (like HDD serial no, Processor ID, etc) and generate one hardware key.
3) user need to send your this hardware key and from your end you can generate encrypted key for that particular computer. and the key should not be used in any other computer as it will be mix of your license information and hardware information.
4) if key is valid then only it will let user allow to open software.

Let me know in case you have any query

best luck

Posted 14-Dec-12 18:12pm

AmitGajjar

Comments

Umapathi K 21-Dec-12 1:37am

but i want to user have to enter product key during installation not after installation

AmitGajjar 21-Dec-12 1:38am

in that case you can create one form and load it at the time of installation.

Umapathi K 21-Dec-12 1:58am

how to make customize user form during setup and deployment? i am new to this please help me out

AmitGajjar 21-Dec-12 2:15am

just create new form that process your key and store in registry. and try to create installer. if you feel any issue, you can post question again :)

Umapathi K 21-Dec-12 2:57am

i have create one installer class but i am unable to design form (to enter password from user during installation)

AmitGajjar 21-Dec-12 3:19am

you can call exe file from installer.

Umapathi K 21-Dec-12 3:56am

i did the following steps
1. added custom actions from set and deployment
2. right click on install->added installer file which i have created
(in installer file i have created a input box to get input from user)
the problem is whether user entered wrong are left empty when then click ok set up installing i tried like when user given wrong password the set up should be stop but failure in this)

adriancs · Answer 2 · 2012-12-14T18:14:00

Product Key = Sha128("Your Secret Password" + Client's Machine Code)

Client's Machine Code = Sha256(Processor S/N) + Sha256(Hard Disk S/N)
Client's Machine Code = Sha128(Client's Machine Code);

Example of a Generated Product Key:
40BD001563085FC35165329EA1FF5C5ECBDBBEEF

You can take a look at CTI One Way Encryption, which can generate key something like this:
2KSF2-FPW9S-CN87S-3SKJX-QASX9

CTI Text Encryption: http://ctiencrypt.codeplex.com/