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From: Michael Soyka <mssr953@gmail.com>
Newsgroups: comp.lang.tcl
Subject: how to pass /E:ON argument to cmd.exe using exec (Windows)
Date: Mon, 30 Sep 2024 11:35:30 -0400
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For a change of pace, this will not be a Tcl 9 question (I'm using 8.6.14).

Using tclsh, why does this succeed:
     exec -- cmd /C dir

but this fails:
     exec -- cmd /C /E:ON dir

with this message :
     "The filename, directory name, or volume label syntax is incorrect."

I'm guessing that "exec" is treating /E:ON as a file spec (the colon 
maybe?) and then changes it somehow.

A followup question is how can I see what string is being presented to 
to Windows?

Thanks for answering.

-mike