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http://obsidium.de/

The Obsidium software protection and licensing system allows you to protect your program from unauthorized modifications (i.e. "cracking") and provides you with a reliable yet easy to implement licensing system.  
   
Obsidium key features:  
     
・ encryption of application code and data   
・ compression of application code and data   
・ counter-measures against disassembling, debugging, dumping and runtime patching   
・ protection API   
・ automation of license generation   
・ licensing system featuring up to 2048 bit public key cryptography   
・ registration via keyfiles or text keys   
・ blacklisting of stolen or compromised keys  
・ runtime en-/decryption   
・ system-specific licenses  
・ password protection  
・ creation of time limited trial versions  
  
Obsidium is released as shareware. There is no time or date limit but some of its features (saving/loading project files) are disabled and protected programs will show a corresponding reminder message. Applications protected by the demo version may not be distributed. Obsidium itself is not hardware-locked.  
  

新版更变态了，有兴趣的兄弟看看  :D

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