I would guess from your use of the phrase "windows command prompt" that you are using some variant of the Microsoft WindowsTM operating system. My familiarity with those systems is not extensive but from the few times that I have had to use them it has become clear to me that clicking on various desktop icons is rarely sufficient to cause them to execute. Instead you will need to double-click them. Try that.

In reply to Re: executing perl not from command prompt by hippo
in thread executing perl not from command prompt by Anonymous Monk

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