You need to set the associations for the .pl file extension in the command interpreter. Type this at a command prompt:
    ASSOC .pl=PerlScript
    FTYPE PerlScript=c:\Perl\bin\perl.exe "%1" %*

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Don't use the START command as Grygonos suggested unless you want to run it asynchronously.

If you want to mix the output of "t.pl" with the output of the program calling it, you'll need to turn off buffering in the parent program: "$| = 1;"

In reply to Re: system call in an CGI perl script, fails on Windows XP by Thelonius
in thread system call in an CGI perl script, fails on Windows XP by sureshr

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