Download AutoIt Obfuscator package with Windows GUI client, command line version compatible with both Windows & Linux, and SDK source code with examples for PHP.
Here you can download the demo version of AutoIt Obfuscator. Installation & application files are all digitally signed and tested with the latest antivirus software.
If you would like to ask me about AutoIt Obfuscator, or something's not clear, mail me. I'll be happy to answer all of your questions.