You'll need to surround the command line call containing spaces with double qoutes on Windows. Here's an example using Getopt::Long:

use Getopt::Long;

GetOptions(
"n=s"    =>    \$name,
"h=s"    =>    \$host
);
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Your arguments will both be strings in this example and referenced from the command line as -n and -h. From there you can reference the arguments using $name and $host