Hello.
Application can't start if Username have non-ascii characters.
Try to build this:
#!/usr/bin/perl -w
use strict;
use Tkx;
Tkx::package_require('treectrl');
...
Tkx::MainLoop();
app.exe:
invalid command name "442" at /NON-ASCII\Documents\Dev\app\
\app.exe>Tcl.pm line 543.