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If you are an experienced Perl developer, you may find PerlScript more comfortable to use than VBScript or JScript. PerlScript is syntactically similar to Perl. The PerlScript scripting engine is maintained by ActiveState, a company that describes its role as "assist[ing] with the transition of [Perl] scripts between Windows and Unix based systems" (http://www.activestate.com/corporate/). The PerlScript engine can be downloaded for free from ActiveState's web site, http://www.activestate.com.
With PerlScript, like with Perl and C/C++, each statement must end with a semicolon. PerlScript's control structures, which are identical to Perl's, include if ... elsif ... else, for, while, foreach, and foreach ... until. If you are new to Perl, I highly recommend that you obtain a copy of O'Reilly's Learning Perl, Second Edition by Randal Schwartz and Tom Christiansen.