You can run your perl scripts from the command prompt as ithelp is suggesting, but it is much easier to use a perl IDE to write, edit, and run your perl programs. A free one for Windows is Perl-Express:
There are other free ones and you can also purchase a perl IDE. I have used PerlBuilder2 Pro for years but there are even better ones for more money. For now stick with Perl-Express and if you need something better you can always get it later.