The \Examples\ folder contains sample AutoIt scripts. If you have AutoIt file extension AU3 set to open/run with the AutoIt3.exe, then it is recommended that you copy the files from the \Examples\ folder to your Visual CADD \Macros\ folder, usually C:\Public Documents\Visual CADD 9\Macros\. Then your AU3 scripts can be run with a script command such as:
FileName;run::HelloWorld.au3;AutoMacro;
or
ExeName;"C:\Program Files (x86)\AutoIt3\AutoIt3.exe" "C:\Public Documents\Visual CADD 9\Macros\HelloWorld.au3";WinExec;