Saahil
I am making going to make a revision program, most probably using flash and then put it onto a cd and then sell it as. I wanted to add some sort of security onto it and have already though of protecting it from being copied. I also, however, wanted to add a product activation key like they have on computer games or if you are installing windows. Can anybody please tell me how I would go about doing this.
Thanks in advance.
Saahil.
Answer
This can be come complicated some times.
I have done this once before and what i used is an algorithim that computes there email address and creates a code they need to put in so that they may be able to use it. Also had one using VB.NET that has a trial period and after that you needed to enter a correct product code. Similar to other validations mine used the computer name and created a key which was supposed to be sent back to me and then I would use an algorithm i made to create a new key that would be used to validate. Lots of math was used and Like i said it can be come complicated. I do know there are a few programs out that do this for you but you need to pay some $$$ as they are not free.
examples to get you started.
Say you have product x:
Needs to be activated for full use in 5 days. <- use a counter that stores info in the registry or a file of your format encrypted with your own algorithm so that it cannot be modified if it is it will lock the program. rendering it unusable.
Create an algorithm which test to see if a number is valid. Similar to the Credit Card check which validates that the numbers are real. I used a variation of this once and it worked pretty good,
GOOD LUCK!
This can be come complicated some times.
I have done this once before and what i used is an algorithim that computes there email address and creates a code they need to put in so that they may be able to use it. Also had one using VB.NET that has a trial period and after that you needed to enter a correct product code. Similar to other validations mine used the computer name and created a key which was supposed to be sent back to me and then I would use an algorithm i made to create a new key that would be used to validate. Lots of math was used and Like i said it can be come complicated. I do know there are a few programs out that do this for you but you need to pay some $$$ as they are not free.
examples to get you started.
Say you have product x:
Needs to be activated for full use in 5 days. <- use a counter that stores info in the registry or a file of your format encrypted with your own algorithm so that it cannot be modified if it is it will lock the program. rendering it unusable.
Create an algorithm which test to see if a number is valid. Similar to the Credit Card check which validates that the numbers are real. I used a variation of this once and it worked pretty good,
GOOD LUCK!
How can I instert flash or gif in my pc screen?
gerardolop
I need to insert a flash or gif advertisment in the computers of my little internet cafe. Not in any web page, Simplily I would like that meantime the customers are working in any page a banner or animated gif or flash crosses the screen advertising my products. How can I do that ?. Somebody said use Visual Basic. But How. I will appreaciate your helpnad HELP PLEASE.
Answer
Visual Basic or VB.net would definately be the way to go, i could easily write one but i am pretty sure someone has already written a program like it on one of the developer resource sites. You could check out the following sites for info
http://www.codeproject.com
http://www.planetsourcecode.com
http://www.programmersheaven.com
http://www.codeguru.com
Visual Basic or VB.net would definately be the way to go, i could easily write one but i am pretty sure someone has already written a program like it on one of the developer resource sites. You could check out the following sites for info
http://www.codeproject.com
http://www.planetsourcecode.com
http://www.programmersheaven.com
http://www.codeguru.com
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