print "$ENV{PATH} "."\n";
    my $install_path = "c:\\bin";
    if( !($ENV{PATH} =~ /c:\\bin/i) ) 
    {
        print "1 "."\n";
        $ENV{PATH} .= ";$install_path";
        print "$ENV{PATH} "."\n";
    }

[download]

print shows the path already been added. But when I check by opening a new session type path command or open registry:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment The path is still the old one. Anyone know why? Need save $ENV{PATH}?

In reply to ENV Path didn't take effect by anaconda_wly

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