The Steps Needed to Customize the Template

So lets look at the steps needed to customize the template by going through it in parts:

=POD
=BEGIN PerlCtrl
  %TypeLib = (
    PackageName     => 
	'MyPackage::MyName',
    TypeLibGUID     => 
	'{32E6513E-DF20-11D3-B454-00805F9BDE4A}', #do NOT edit line
    ControlGUID     => 
	'{32E6513F-DF20-11D3-B454-00805F9BDE4A}', #do NOT edit line
    DispInterfaceIID=> 
	'{32E65140-DF20-11D3-B454-00805F9BDE4A}', #or this one
    ControlName     => 'MyApp.MyObject',
    ControlVer      => 1,  # increment if new object with same ProgID
                               # create new GUIDs as well
    ProgID          => 'MyApp.MyObject',

PackageName:
This reflects the name of the package in which you have placed the Perl object.

TypeLibGUID, ControlGUID, and DispInterfaceIID:
As the comments above state, do NOT edit these. They are the unique identifiers by which the system upon which the component is registered is going to locate it.

ControlName:
This is the descriptive name you give the component

ProgID:
This is the identifier that the person who uses your object is going to use to identify and instantiate it - for example if you were to use "Server.CreateObject("MyApp.MyObject")", you would define the following:

DefaultMethod   => 'MyMethodName1',
Methods         => {
            'MyMethodName1' => {
                RetType             =>  VT_I4,
                TotalParams         =>  5,
                NumOptionalParams   =>  2,
                ParamList           =>[ 'ParamName1' => VT_I4,
                                        'ParamName2' => VT_BSTR,
                                        'ParamName3' => VT_BOOL,
                                        'ParamName4' => VT_I4,
                                        'ParamName5' => VT_UI1 ]

The methods section is really a number of repetitions. It is the section that allows you to describe the input and output parameters and data types that the various methods of your object have as their signature.

DefaultMethod:
This is the method that is going to be called fromm your object if someone uses it in a method context without specifying a method name. For example, if your object name is X, and its default method is Y, then saying X("some argument") will call method Y on the "some argument" parameter.

Methods:
Provide a method name where the above template code says 'MyMethodName1'. Specify the total number of parameters that the method accepts [ Total Params], and the number of those parameters that are optional [NumOptionalParams ] .

In the ParamList, where the template code says "ParamName1" and so on, specify the parameter names that the method expects. The names you give your params ought to reflect the names you have given them in your Perl code - so a parameter labeled $smtpServer translates to a parameter name of "smtpServer" in the template code.

Generate the Template
Introduction to Perl on Windows - Table of Contents
Datatypes