This document details how to check if your computer has TCP/IP installed.

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Introduction to TCP/IP
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Windows 95 / Windows 98

1)	Select the Start button, then the Settings menu, and then the Control Panel from the Settings menu.
2)	Double click on the "Network" icon.
3)	Look in the top list box in the Configuration tab.
4)	If you do not see an entry that starts with "TCP/IP" then you have not installed TCP/IP. You can install it using the How to add TCP/IP instructions.

Windows NT

1)	Select the Start button, then the Settings menu, and then the Control Panel from the Settings menu.
2)	Double click on Network
3)	If a message box comes up asking if you would like to install Networking, then you can safely say that you do not have TCP/IP (or any other networking protocol) installed.
4)	If, however, a window comes up with your Network information, click on the Protocols tab.
5)	Look through the list and see if you can see TCP/IP Protocol.
6)	If Yes, then you already have TCP/IP installed, and you can close all windows to return to your desktop.
7)	If No, then see the document entitled How to add TCP/IP .

Windows 2000

In Windows 2000 it is not enough to determine if TCP/IP is installed. Windows 2000 automatically detects whether your machine is using TCP/IP, and disables it if it is not! So first you must determine whether the machine has TCP/IP installed on a modem or on a network connection or, of course, not at all. In order to do this, please follow these simple instructions:

1)	Select the Start button, then the Settings menu, and then the Control Panel from the Settings menu.
2)	Double click on Network and Dial Up Connections.
3)	This should show a window of all network related connections. i. If there is only one icon called Make a New Connection, then you don't have any network or dial up connections, and therefore, no TCP/IP. For now, you can close all windows to return to your desktop. ii. If there are other icons, we need to determine what they are. The simplest way is to go to View on the main menu, and choose Details. This will display some details of each connection. If there are any that say LAN under Type, then we can assume you have a network card installed. If there are any that say Dial-up under Type, then those are modems. iii. If you don't have any LAN type connections, you can close all windows to return to your desktop. Otherwise, continue with step 4.
4)	Right click on the any of the network (those that say LAN) icons and choose Properties.
5)	On the General tab, look through the list and see if you can see Internet Protocol TCP/IP. You will need to repeat steps 4 and 5 for all LAN connections in the window.
6)	If it is there, you have TCP/IP installed. If not, you don't have TCP/IP.