Delphi source project obfuscator. The obfuscation of Delphi projects is a deterrent against reverse engineering. AltDel is a 5-phase script-driven lexical compiler that produces obfuscation by lowering the language level of Delphi source projects. If you don't want your Delphi programming being visible to bad guys, then you would rather maintain well-formed source projects while releasing ever-changing AltDel-obfuscated versions.