4.b. Use of the Software through a web server on external-facing servers requires a separate Business Edition license agreement from ACTIVESTATE which will supersede the terms of this license. Except as expressly provided herein, you may not use the Software to provide content or functionality through a web server on external-facing servers.
ActiveState Business Edition licenses for ActivePerl, ActivePython and ActiveTcl are $999 per server. Good luck with that. I don't know about Python or Tcl, but Windows Perl developers will simply use Strawberry Perl.