Windows Vista is more restrictive and so is Skype software. It is more tedious to run it under Windows Vista, but you should still be able to run multiple instances of Skype. The example here assumes you want to run a 4-line system using Skype.
Create multiple Windows user account and setup Skype
You need 4 Windows […]

Windows XP and later operating systems provide a built-in firewall. Please make sure accessing Voicent Gateway is enabled. From Windows Control Panel, you can access Windows firewall, click on the Advanced tab, then choose Local Area Connection, click on the Settings… button, then click the Add… button. Enter the service settings, and then click OK.

You […]

First invoke Norton Protection Center by clicking its icon on the Windows toolbar. From the main window, select Norton Security Online tab. Then choose Settings > Additional Options > Internet Security and Firewall Options. Please note, your Norton version might be different, so the steps might not match exactly.
From the Firewall window, select Program Control […]