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Copy Protect Jar files

 
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Hi Everyone,
How do I copy protect Jar files. I need this for licensing the software that we created. Is there any mechanism for this or any open source tools to do that
Thanks in Advance
 
Srinivas Genji
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Is that possible to protect JAR files from copying. Any Reply or suggestions on this is really appreciated.
 
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This product might be something for you:
http://www.agilis-sw.com/ezlm/index.htm

/Svend Rost
 
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The file itself can't be copy-protected. The code inside can certainly have a licensing mechanism (password-based or something else), although with enough time, criminal energy and and a decompiler, users will be able to crack this.
 
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It's also worth reading this.
 
Srinivas Genji
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Thanks Guys,
Firstly, I would like to apologise for posting the same question twice. Reason I felt is that the first post was not clearly communicating. I thought I would make it much more clearer to get the appropriate answer.

I am looking for an opensource License management Tool or Copy Protection tool for packaging my software.

Few other questions follows

How licensing is done normally ?
I have couple of answers which may be wrong too

1) Requesting for a licensed file during registration which has the Usage period, number of license allowed for the customer and so on. License file may obtain from Registering through internet.
2) Providing a Key with the software Packaged CD

I want to restrict the usage based on the number of licenses provided and protecting from illegal copies. Any Ideas please !
 
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