How to set expiry date for my software
-
HELLO I want to set 1 Month expiry date for my software. How can I do this.User can set system clock in back date,So how can i check this. Using Dot Net how can I make installable setup.Should I write registry keys at time of installation. If yes how? Regards
-
HELLO I want to set 1 Month expiry date for my software. How can I do this.User can set system clock in back date,So how can i check this. Using Dot Net how can I make installable setup.Should I write registry keys at time of installation. If yes how? Regards
You can also have an Activation WebService and a kind of similar crosschecking validation to do this trick. Vasudevan Deepak Kumar Personal Web: http://www.lavanyadeepak.tk/ I Blog At: http://deepak.blogdrive.com/
-
You can also have an Activation WebService and a kind of similar crosschecking validation to do this trick. Vasudevan Deepak Kumar Personal Web: http://www.lavanyadeepak.tk/ I Blog At: http://deepak.blogdrive.com/
-
HELLO I want to set 1 Month expiry date for my software. How can I do this.User can set system clock in back date,So how can i check this. Using Dot Net how can I make installable setup.Should I write registry keys at time of installation. If yes how? Regards
To prevent back-date being used, implement a scheme like this: 1. At the time of installation, set the
date of installation. 2. At the time of every use of software, set some variable for that date as thelast date usedand store it somewhere for further use. If this variable already contains a date which is later than the date of fresh use of software, do NOT reset it and let it contain that later date. 3. Next, at the time of every use of software, check fortoday's date. If this date is prior to thelast date usedstored in step 2 above, then settoday's dateto the aforesaidlast date used. Now check the validity of software from this "revised today's date" from thedate of installationand see whether it is less than 30 days or more. Regards, Ashok Dhamija _____________________________ Padam Technologies -
To prevent back-date being used, implement a scheme like this: 1. At the time of installation, set the
date of installation. 2. At the time of every use of software, set some variable for that date as thelast date usedand store it somewhere for further use. If this variable already contains a date which is later than the date of fresh use of software, do NOT reset it and let it contain that later date. 3. Next, at the time of every use of software, check fortoday's date. If this date is prior to thelast date usedstored in step 2 above, then settoday's dateto the aforesaidlast date used. Now check the validity of software from this "revised today's date" from thedate of installationand see whether it is less than 30 days or more. Regards, Ashok Dhamija _____________________________ Padam Technologies