CGI is not that interactive, and CGI::Push is outdated (not just the module, but PUSH technology) and unreliable.

If you have a specific browser in mind (*hint*hint), just use "PerlScript, an ActiveX scripting engine, like JavaScript or VBScript with a Perl brain ". Embed perl in your browser, and then just use some magical modules from CPAN, like Net::Telnet, and do your thing.

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** The Third rule of perl club is a statement of fact: pod is sexy.