At least for 5.016 (the free or so-called "Community edition") and earlier, AS does NOT charge for use of MIME::Lite.

C:\>ppm search MIME::Lite
Downloading ActiveState Package Repository packlist...done
...
1: MIME-Lite
   unknown
   Version: 3.029
   Released: 2012-08-17
   Author: Ricardo SIGNES <rjbs@cpan.org>
   Provide: MIME::Lite version 3.029
   Require: Email::Date::Format version 1 or better
   Require: File::Basename
   Require: File::Spec
   Repo: ActiveState Package Repository  # <--- 
   Link: http://ppm4.activestate.com/MSWin32-x86/5.16/1602/R/RJ/RJBS/M
+IME-Lite-3.029.ppmx
   CPAN: http://search.cpan.org/dist/MIME-Lite-3.029/

C:\>ppm update MIME::Lite
Downloading MIME-Lite-3.029...done
Downloading Email-Date-Format-1.004...done
Unpacking MIME-Lite-3.029...done
Unpacking Email-Date-Format-1.004...done
Generating HTML for MIME-Lite-3.029...done
Generating HTML for Email-Date-Format-1.004...done
Updating files in site area...done
   6 files installed

C:\>
[download]