software licenses

Question

I have developed a c#.net windows application. how do u limit the usage(licenses) of the copies of the software in the CD ? plz let me know in case any one has any idea of how I can accomplish this.. thanks and any help would greatly be appreciated,

Answer 1

Thanks so much for your reply. I tried doing that and it gave me this error: An unhandled exception of type 'System.ComponentModel.LicenseException' occurred in system.dll Additional information: An instance of type 'LicensedControl' was being created, and a valid license could not be granted for the type 'LicensedControl'. Please contact the manufacturer of the component for more information. How shud I proceed ? what am I doing wrong?

Answer 2

.NET Framework have a licensing algo that you can utilize. See ms-help://MS.VSCC/MS.MSDNVS/cpguide/html/cpconlicensingcomponentscontrols.htm in msdn help. Federico

Answer 3

Thanks so much for your reply..! but this is a windows application so how will I be able to create a License file ? any snippets or code would really be helpful..! Thanks,

Answer 4

Nice! And what if the user does not have Internet connection?

Answer 5

create a webservice that accepts and validates a key. The first time the program runs call that web service and create a license file if the key authenticates. This would make the user of your program be online to do this however. HTH