Command-line parameters lost to Perl

I run Indigo Perl under Windows XP. My problem is that Perl scripts

aren't able to see the command line that invoked them, unless I

prefix their name with an explicit call to my Perl interpreter.

Why not?

For example, I have a simple script listargs.pl which counts and

lists its command-line parameters (in array @ARGV).

If I invoke:

listargs.pl a b c

then I get:

0 parameters

However, if I invoke

perl listargs.pl a b c

then I get:

3 parameters:

a

b

c

as desired.

Can anyone suggest why the command-line parameters are lost in the

first form?

- Rich