in reply to How do you run a perl script without typing the extension on NT?

You can use pl2bat. 
DESCRIPTION
    This utility converts a perl script into a batch file that can be
    executed on DOS-like operating systems. This is intended to allow you
    use a Perl script like regular programs and batch files where you jus
    enter the name of the script probably minus the extension plus any
    command-line arguments and the script is found in your PATH and run.
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