Is using system variables like %systemdrive% in AutoIt possible?

I tried something like this but it didn't work.

Run("%systemdrive%\ABC\abc.exe")

You have to put AutoItSetOption("ExpandEnvStrings",1) in your script

it defaults to 0.

Or you can

Run(EnvGet('systemdrive') & '\ABC\abc.exe')

Use the following...

@WindowsDir...C:\Windows

@SystemDir...C:\Windows\System32

*EDIT* Corrected. Thanks for input. Yes - see help files as many more exist.

Actually

C:\ = @HomeDrive

C:\Windows = @WindowsDir

C:\Windows\System or C:\Windows\System32 = @SystemDir

There is a huge list of them in the help file...look under "Macro Reference"

Any ways your sample code would look like so:

Run( @HomeDrive & "\ABC\abc.exe" )

this isn't a help for the autoit script but to left it clear just open your command prompt (cmd.exe from run dialog for example) and then type "SET" without quotes to see the variables available.

note: some of them like %APPDATA% won't be available until windows is fully installed so don't use them on cmdlines.

you can use standard autoit variables when windows has already set up...

however, during windows installation, you cannot use autoit built-in variables (like @HOMEDRIVE, etc...), but you're only restricted to declare variables.. like:

$sysdrive=EnvGet("SystemDrive")
..
...
....
RegWrite($Key&"\001", "", "REG_SZ","Preparing Installation...")
RegWrite($Key&"\001", "1", "REG_SZ",$sysdrive&"\Others\prepare.exe")

hmmm couldn't one also do it like so-

RunWait(@ComSpec & " /c start %systemdrive%\ABC\abc.exe", "", @SW_HIDE)