AntiDebug LIB V2.1 is an advanced software encryption tool for windows ,which helps software developers protect their applications against advanced reverse engineering and software cracking. It offers a powerful advanced license control which allow developers to securely distribute trial versions of their applications. Once a programme is encrypted by AntiDebug LIB V2.1,it can't be debuged by any programme debug tools,can't be analysed statically and dynamically ,can't be dumped from memory,can't be revised. Eagle Protector V2.1 is a PE( Win32 Portable Executable) file protection tool which is based upon AntiDebug LIB V2.1. One of the big changes that Microsoft introduced in Windows XP Service Pack 2 and Windows 2003 Server Service Pack 1 was support for a new feature called Data Execution Prevention(DEP).This feature can't prevent AntiDebug LIB and Eagle Protector V2.1 execute normally. 1. AntiDebug LIB V2.1 offers some functions which need license and use the same function definition as in c++ . 2. AntiDebug LIB V2.1 offers custom function ,it helps software developers write self-engendered function quickly,the source codes of which are only known by the author. 3. AntiDebug LIB V2.1 offers a powerful PE Protector tool--Eagle Protector V2.1 . After your applications are developed normally with VC++,only four steps left as follows: Step 1 Replace the c++ function with AntiDebug LIB's function simply in your no share codes or key codes. Step 2 As to the very important key codes ,we recommend you strongly to use AntiDebug LIB's custom function to create self-engendered functions quickly,then the key codes become a secret besides you. Step 3 Rebuild All in VC++ IDE. Use Eagle Protector V2.1 to encrypt the release EXE or DLL file. Step 4 In installation project ,invoke related tools offered by AntiDebug LIB to install or uninstall the ADL driver.