No additional software is required to complete this process.

Open your Harddisk, and in the Assistants folder, double-click on Internet Setup Assistant.

You'll be asked if you would like to set up your computer to connect to the Internet.  Select Yes to continue.

Now, you'll be asked if you already have signed up for an Internet account. 

Assuming you already have activated your account with NETPLEX, select Yes to continue.

Next, you'll be introduced to the setup process.  Once you've read this screen, click the arrow pointing to the right at the bottom of the window to go to the next step.

Next, you'll be asked what to name this configuration.  We'll just call it NETPLEX.

Then, select Modem for the method of getting connected to us.

When finished, go to the next step.

Now, you'll need to choose your modem from the list.  If you only have one modem installed, then the default options for it are already selected as shown here. 

Unless you live in an area where touch-tone service is not available on your telephone line, you should leave Tone selected below.  It's a rare occurrence you would need to use pulse-dialing.

Note: If there is no modem listed, you'll need to either contact Apple (if your computer came with a modem), or the manufacturer of your modem (if you bought it separately), since we're unable to provide support for hardware issues.

This is where you'll need to put in the number to your local dial-in number to our service.  You should already know what this is. 

If you haven't found a dial-in number yet, see our dial-in list, and double-check with your telephone company to see which one(s) would be considered a "local call".  Only the phone company can verify this, because they are the ones who charge you for the calls you make.  This way, you can be sure you're not incurring extremely expensive charges for being dialed up to our service.

Also, enter in your username and password, as selected (or assigned to you) to sign onto our service.  Make sure that it is spelled correctly, and that you use the lower case letters, so make sure the Caps Lock light is turned off on your keyboard.

You'll now be asked if you need to use a PPP script to sign on.  The answer to this is No, so please select that and go onto the next step.

Now you'll be asked if there is a specific IP address to use.  On all of our standard dial-up accounts, a different IP address is assigned to your computer every time you sign on, and therefore you should NOT specify one.  Select No and go to the next step.

Now we'll enter some information about your e-mail account.  This will configure your computer to automatically be able to send and receive e-mail.

You should already have been given your e-mail address.  Enter it in the first box.

Then, enter your password into the next box.

Finally, you should leave the > sign in the last box - this is the default setting and should be left alone.  It will be placed at the beginning of each line in messages you automatically quote when replying, letting the recipient of your e-mail know what portion you wrote, and what portion is being quoted from previous correspondence.

Now, we need to enter in the data about the e-mail servers you use. 

The first box is your e-mail account name, and should be entered in the format shown below.  This information includes your mail account username @ the actual name of the incoming mail server. 

In the last box, put in your outgoing mail server.

Now, you're asked if you're behind a proxy.  When you're connected to NETPLEX, you have a direct connection to the Internet, and information is not passed to you by proxy servers.  Therefore, select No and go to the next step.

Now, you're ready to complete the process.  To save the information you've entered, click Go Ahead.

Also note, before you do that, if you don't want to connect right away, uncheck the Connect when finished box.

Getting Connected / Hanging Up
In this version of MacOS, you have what's called the Control Strip on your screen.  By default, there is an option here for Remote Access (the system component used to connect your computer to a remote network, such as the Internet).  It's the button with the little Mac, telephone pole, and the timer as shown in this image:

You can just click the Remote Access button, and select Connect to dial up.  Once you're online, you'll see that it begins timing the length of your session to let you know how long you've been connected. 

At this point, you can open any of your Internet applications to get started, such as your Web browser, e-mail client, chat programs, and whatnot.

When you're finished, just click this button again, and select Disconnect to hang up the modem and disconnect from NETPLEX.