Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

how can i create license for my C#.net window application ??

Posted on 2011-02-17
5
1,648 Views
Last Modified: 2012-05-11
i want to create license for my C#.net window application ...
every 6 months license expired and first 30 days subscription .
means user can use my application for 30 days only then he/she can't ...

how can i create license for my C#.net windows application ??
0
Comment
Question by:Parth48
5 Comments
 

Author Comment

by:Parth48
ID: 34923532
create class for license and use it for whole application ...
0
 
LVL 8

Expert Comment

by:jimsweb
ID: 34923542
or you can go with advanced techniques like checking for hard disk serial number, processor ID etc..

http://www.eggheadcafe.com/community/aspnet/2/10111384/hard-disk-serial-number.aspx
0
 
LVL 19

Expert Comment

by:Manoj Patil
ID: 34924006
Hi, you can create this type of application by using Hardware ID. For more details please check following link

http://www.codeproject.com/KB/cs/hard_disk_serialno.aspx
0
 
LVL 10

Accepted Solution

by:
John Claes earned 500 total points
ID: 34924104
Installing :
******************************************************************************
Request all Disk info
(using http://www.codeproject.com/KB/cs/hard_disk_serialno.aspx)

Add Date Of installation +30 days

Save data in Licence file (Decrypted with own decrypter/Encrypter)


Licence Demand
********************************************************************************
Give user possiblity to demand Licence : send  Licence file to you
Encrypt File :
Change Date Of Installation to today + 6 months
Respond with altered Licence file



You're program should check:
*************************************************************************
On startup :
Get Licence File
Request all Disk info
(using http://www.codeproject.com/KB/cs/hard_disk_serialno.aspx)

If Disk Info of x-1 on x of the Disks is OK (Can Occure that HD is changed otherwise all disks are OK)
So every disk must be the same only 1 may fail

Check date.

If in case 1 Disk Failed : rewrite Licence File :


This way the folowing check will not fail ;-)
and the user sees a changing licence File so he won't hastly edit in it


regards
poor beggar


0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

ASP.Net to Oracle Connectivity Recently I had to develop an ASP.NET application connecting to an Oracle database.As I am doing it first time ,I had to solve several problems. This article will help to such developers  to develop an ASP.NET client…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question