Well, sure. It would be silly for an operating system to be unable to list directory contents. CMD.EXE has a built-in "dir" command, but there is no actual DIR.EXE or DIR.COM program in the version I just checked.

Nevertheless, system() seems able to execute shell built-ins on Windows: 

C:\>perl -wle "system('set')"
ALLUSERSPROFILE=C:\Documents and Settings\All Users

[download]
Whereas this sort of thing fails in UNIX: 
% perl -wle 'system "set"'
Can't exec "set": No such file or directory at -e line 1.

[download]

--
Rocco Caputo - http://poe.perl.org/ - irc://irc.perl.org/poe

In reply to Re^3: POE::Wheel::Run & Tk Problems by rcaputo
in thread POE::Wheel::Run & Tk Problems - Solved by cmv

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