The AutoIt installer creates a directory structure (usually located in \Program Files\AutoIt3) summarized in the following table. The installer also creates Start Menu shortcuts, but no other files are added or modified.
| Files and Directories | Description | |
| (Top-level files) | ||
| AutoIt3.exe | The AutoIt main program and only file required to run scripts! | |
| AutoIt3_x64.exe | The x64 version of AutoIt (if installed). | |
| AU3Info.exe | The AutoIt Window Info Tool. | |
| AU3Info_x64.exe | The x64 version of Au3Info (if installed). | |
| AU3Check.exe | The AutoIt syntax checker. | |
| AutoIt.chm | This help file which use AutoIt3.chm and UDFs3.chm | |
| Uninstall.exe | The AutoIt uninstaller. | |
| AutoIt v3 Website.url | A shortcut to http://www.autoitscript.com/autoit3/ | |
| Aut2Exe | ||
| Icons\ | Contains icons used for the .au3 filetype icon in Explorer. | |
| Aut2Exe.exe | The script compiler. | |
| Aut2Exe_x64.exe | The x64 version of Aut2Exe (if installed). | |
| AutoItSC.bin | Executable stub for compiled scripts. | |
| AutoItSC_x64.bin | x64 executable stub for compiled scripts. | |
| UPX.exe | The UPX compressor (shinks the size of exe files). | |
| Examples | ||
| COM\ | Contains examples of COMs written in AutoIt. | |
| GUI\ | Contains examples of GUIs written in AutoIt. | |
| Helpfile\ | Contains scripts used in many of the help file examples. | |
| Extras | ||
| Au3Record\ | Contains Au3Record.exe to capture user interaction to be converted as a script. | |
| AutoUpdateIt\ | Contains a script for easily retrieving the latest version of AutoIt3. | |
| Editors\ | Contains syntax coloring definitions for some popular text editors. | |
| SQLite\ | Contains SQLite command line executable and an help file. | |
| Icons | ||
| Contains icons used for the .au3 filetype icon in Explorer. | ||
| Include | ||
| Contains standard include files (pre-written user functions). See the Library Functions) | ||
| AutoItX | ||
| Contains a DLL version of AutoIt v3 that provides a subset of the features of AutoIt via an ActiveX/COM and DLL interface. | ||
| SciTE | ||
| Contains a light version of SciTE which allows syntax coloring. | ||
It should be repeated that to run AutoIt scripts, the only required file is AutoIt3.exe. If you compile a script into an executable then a user does not require AutoIt to be installed to run that compiled executable.
The AutoIt installer creates registry keys under HKEY_LOCAL_MACHINE\Software\AutoIt v3 and HKEY_CURRENT_USER\Software\AutoIt v3. The keys are NOT used/created when AutoIt utilities are run on machines that lack a full AutoIt installation--AutoIt is "clean" to run on servers, etc.
The table below shows the default (or typical) registry keys. The keys in italic are not created by the installer itself but by the first execution of the corresponding utility:
| HKEY_LOCAL_MACHINE\SOFTWARE\AutoIt v3\ | ||||
| AutoIt | ||||
| (Default) | REG_SZ | (value not set) | ||
| InstallDir | REG_SZ | C:\Program Files\AutoIt3 | ||
| Version | REG_SZ | Version Number | ||
| HKEY_CURRENT_USER\Software\AutoIt v3\ | ||||
| Aut2Exe | ||||
| (Default) | REG_SZ | (value not set) | ||
| AllowDecompile* | REG_DWORD | 0x1 | ||
| LastCompression | REG_DWORD | 0x2 | ||
| LastExeDir | REG_SZ | My Documents | ||
| LastIcon | REG_SZ | |||
| LastIconDir | REG_SZ | C:\Program Files\AutoIt3\Aut2Exe\Icons | ||
| LastScriptDir | REG_SZ | My Documents | ||
| AutoUpdateIt | ||||
| (Default) | REG_SZ | (value not set) | ||
| DoneOption | REG_SZ | Notify | ||
| DownloadDir | REG_SZ | C:\Downloads\ForExample\ | ||
| AU3Info | ||||
| Default | REG_SZ | (value not set) | ||
| AlwaysOnTop | REG_DWORD | 0x1 | ||
| ColorMode | REG_DWORD | 0x1 | ||
| CoordMode | REG_DWORD | 0x1 | ||
| HighlightColor | REG_DWORD | 0x0 | ||
| HighlightControls | REG_DWORD | 0x1 | ||
| Magnify | REG_DWORD | 0x0 | ||
| WinH | REG_DWORD | 0x01c2 | ||
| WinW | REG_DWORD | 0x012c | ||
| WinX | REG_DWORD | 0x0064 | ||
| WinY | REG_DWORD | 0x0064 | ||
* - AllowDecompile will only work with AutoIt V3.2.5.1 or earlier.