I'm writing my school work about software cracking (software piracy) and Im making example crackme application (in Visual Basic). Currently Im using these methods as crack protection: 1 - Application code is obfuscated and binary is packed. 2 - Application must run only from Launcher (if you run it directly error will appear) 3 - Launcher is obfuscated and packed too. 4 - License key (hash) is written in registry (encrypted by MD5) 5 - On start application download file with valid license keys and compare license key from registry with this file (if licensed key is not in file with valid keys application will crash) (after comparation is downloaded file deleted) 6 - On start application download file with license key expiration date and compare it with date from cumputer (after comparation is downloaded file deleted) I know it can not be completely protected from crackers (it will be cracked). Do you have other anti piracy tricks and tips? Thank you :)
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