How to execute a perl script from any directory in WIN7

Is your UAC (User Account Control).
Are we dealing with a single machine or multiple?

You must add ".pl" to the PATHEXT environment variable.

On the command line, type the following, there are examples for exactly what you are trying to do.

help assoc
help ftype

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Hi Papertrip, I did that still no TAB key of the perl script with any name combo.

Apologies I left out some key info, updated in my last post.

Disregard my first comment, I had company over and was quite distracted.

Adding .pl to PATHEXT envvar will allow you to execute a command without requiring the extension -- ie: myscript vs myscript.pl

If you run 'help ftype' you will see examples of exactly what you need to do.

C:\Users\blah>help ftype
Displays or modifies file types used in file extension associations

FTYPE [fileType[=[openCommandString]]]

  fileType  Specifies the file type to examine or change
  openCommandString Specifies the open command to use when launching files
                    of this type.

Type FTYPE without parameters to display the current file types that
have open command strings defined.  FTYPE is invoked with just a file
type, it displays the current open command string for that file type.
Specify nothing for the open command string and the FTYPE command will
delete the open command string for the file type.  Within an open
command string %0 or %1 are substituted with the file name being
launched through the assocation.  %* gets all the parameters and %2
gets the 1st parameter, %3 the second, etc.  %~n gets all the remaining
parameters starting with the nth parameter, where n may be between 2 and 9,
inclusive.  For example:

    ASSOC .pl=PerlScript
    FTYPE PerlScript=perl.exe %1 %*

would allow you to invoke a Perl script as follows:

    script.pl 1 2 3

If you want to eliminate the need to type the extensions, then do the
following:

    set PATHEXT=.pl;%PATHEXT%

and the script could be invoked as follows:

    script 1 2 3

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I'm not sure if that will enable you to tab complete 'myscript' or 'myscript.pl', but if you can run the command from any directory after the change, that is a step in the right direction.

I believe the way command line tab-completion works in Windows is that it will auto-complete file and directory names relevant to your current working directory, but does not work exactly like a Unix PATH envvar by allowing a command to be ran from any directory using just the executable name.  I could be totally wrong on this part, but pretty sure about the rest ;)

Well you can scratch your head about that part, but what about being able to execute a script located in c:\scripts from a different directory, you are trying to accomplish that as well right?

H, I can run the script from any directory as long as I know the whole spelling. I was looking for a tab complete way.

:-/

The title of your request and first sentence are, respectively,

How to execute a perl script from any directory in WIN7

I am running WIN 7 Pro 64bit. My goal is to be able to execute a perl (.pl) from any directory I may be in.

Are you saying you were already able to execute a script located in c:\scripts before I gave advice?
If not, then if what I suggested works, I have resolved what appears to have been the original issue.

If you are now, after my advice, able to execute a script found in c:\scripts from any directory, then this question has been answered.  It is unfortunate that tab-completion doesn't appear to work as you would wish, but I think you may have distinct questions here.