Since the ESET NOD32 Antivirus is a free download, you cannot install it without an internet connection. At this time I'm going to tell you how to download this software from the internet to your computer. When you want to download software from the internet, you must have a website that you can use for the download. When you use this website you will be allowed to download the program to your computer. The download will occur once the website you're using receives your IP address. Once your computer gets the download from the website, it will automatically run the application for you. You do not need to be there to let it run.
After the download has completed, you can find the application on your desktop in the folder. This folder will be inside your computer's Downloads folder. To get to the folder, click on Start > All Programs > Accessories > Windows XP Folder. Locate the folder and click on it to expand it. Within the Folders you will see the files of ESET Antivirus such as the "NOD32".
There are many advantages of downloading this software since it is a free application. It is not difficult to download the application because it can be found on the internet. When you download software from the internet, you will be given a unique URL which you can point your browser to your computer. When you click on this URL, the software will immediately run and that is how you will download ESET NOD32 Antivirus.