If you run some very simple tests and then show the code and the output, you're likely to get a far more informative response. When you don't provide such information, we can only guess. Here's an example:

C:\_\tmp>perl -e "print qq{@ARGV\n};" arg1 arg2 arg3
arg1 arg2 arg3

C:\_\tmp>perl test_args.pl arg1 arg2 arg3
arg1 arg2 arg3

C:\_\tmp>test_args.pl arg1 arg2 arg3
arg1 arg2 arg3

C:\_\tmp>type test_args.pl
print qq{@ARGV\n};

C:\_\tmp>
[download]

The above was run on Windows XP so it doesn't help troubleshoot a Windows 7 problem.