But your tktests will not run anyway, because there's no perl/Tk in that package, only perl (strimmed. but you can populate PM files into .zip) and Tcl/Tk.

Following code runs okay:

use warnings;
use strict;
use Tcl::Tk;

my $mw = Tcl::Tk::tkinit;

#centers window
CenterWindow($mw, 300, 200);
Tcl::Tk::MainLoop;

sub CenterWindow {
    my($window, $width, $height) = @_;
    #$window->idletasks;
    $width  = $window->reqwidth  unless $width;
    $height = $window->reqheight unless $height;

    my $x = int(($window->screenwidth  / 2) - ($width  / 2));
    my $y = int(($window->screenheight / 2) - ($height / 2));

    $window->geometry("=${width}x${height}+${x}+${y}");
}
[download]

One more thing.

There are console and "windows" mode editable by editbin. The problem is that w/o console you do not see error message (such as 'module Tk not found blablabla'), so I suggest you to try tests with console-based of executable

Also you may want running applications from command line, so you need console version of executable again, see both at http://www.vkonovalov.ru/files-exchange/ cstart.exe and wstart.exe

So try again with cstart.exe

Lovely! Guess its time to use some module to get all files that are used in a script and insert them into the zip!

However, I tried runing this now working tcltests.pl with both cstart and wstart, and I didn't get any console window with cstart!

Ace

Lovely! Guess its time to use some module to get all files that are used in a script and insert them into the zip!

... and this process could make password-protected ZIP to make source hiding, if needed.

Do you think CPAN waits for this yet another packaging solution??

However, I tried runing this now working tcltests.pl with both cstart and wstart, and I didn't get any console window with cstart!

mea culpa. I've uploaded better "cstart.exe" to same location, and with a different name (start.exe) to avoid caching problems