WinDOS uses the DOS model and does not pass arguments to invoked processes, only a "command tail" string that all Windows C runtime libraries parse into argc and argv using some rules or other.

Using wperl as in your example means that $pathToMyself is already being passed as the "command tail" to wperl. Try:

my $argtail = join ' ', @args;
exec(qw/wmic process call create/ => "CommandLine='wperl $pathToMyself
+ $argtail'");
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If you are wondering, yes, this does mean that arguments containing whitespace are a problem. Quoting is handled by C runtime library startup code and that can vary from program to program because there is no standard system C runtime library on Windows.