copy-protection

Is it possible to restrict a .NET executable to a specific machine somehow so that it can only be run on that machine. Yes, and I do that in my apps. It works wonderfully. Getting the system info (CPUID, MacID, HDD details) is easy using WMI (highly recommended). I created a system that's practically foolproof (unless you're a pro hacker). When my apps are installed for the first time on the user's PC, they go back to my server using web services. They identify themselves using a password hash and look for an authorisation code/order id for the client. If the client has the correct

I have developed a software piece (with C and Python) which I want to protect with dongle so that copying and reverse engineering becomes hard enough. My dongle device comes with an api which provides these: Check dongle existence Check proper dongle Write into a memory location in dongle Read from a memory location in dongle etc. (I think the rests aren't that good..) What I can do in the source code so that it becomes harder to crack. Dongle provider suggested that, I should check proper dongle existence in a loop or after an event, or I should use the dongle memory in an efficient way. But

I want to write a script in PHP and javascript and somehow protect my source code so that I can sell my script. I am looking for ideas how to protect my script. If I sell it to someone, how can I stop that person from redistributing it as their product? I know there is ZEND and ionCube, but are there any other methods? As I don't like to force a user to have zend optimizer installed on the server. Is there any way of generating a "serial number" protection for these scripts that cannot be removed by editing the code? There are ways to obfuscate and encrypt your code but if you rely on your

Doing a bit of advance research, and am stuck on the point summarized in the title. Namely, is there any way to forward-lock an APK installed programmatically, from another app? I've not come across anything beyond a hint in the following post: http://groups.google.com/group/android-developers/msg/e39941389d4a4cf8 I can't see anything in the docs for PackageManager about forward- locking, but I readily confess that this is an unfamiliar area of the SDK for me. [Cross-posted with the Android-Developers Google group] If anyone looks at this again... I've since found out that it can't be done in

I have an application (C#) and I am tasked with putting some simple licensing scheme in it. While doing that I need to save that information somewhere in computer to limit the usage. I need to save a date and a counter. How and where I should save the information which, on Windows Vista, doesnt require administrative privileges to run? (Which means saving it in System32, Program Files, HKEY_LOCAL_MACHINE is not an option.) Please do not flood the answers with "don't do it" or "it will be cracked anyway". I do understand those logics. I just need to do anything best that can be done for this

I wish to create shareware software that contains a registration algorithm. I am looking for a programming language, that cannot be easily decompiled into readable code. For example, C# can be decompiled into readable code. What are my options? Edit: I'm looking for something that can be only decompiled into assembly. Delphi, for example, cannot be decompiled like C# or Java, but from what I've heard, Delphi is dying. Schalk Versteeg Delphi is not dying, it is alive and well. As is the community, at delphifeeds . You can also see more delphi projects, Freeware, shareware and commercial at the