WebOne is a very nice tool for retro computer enthusiasts like myself. It allowes me to connect to most modern websites on ancient hardware.
The thing about WebOne to remember: It's not a one and done solution to making your Windows XP laptop useful, most sites on older browsers end up broken due to a number of factors including unsupported CSS, JS, and certain HTML elements, for example.

My site is designed for older browsers on purpose, since I have about three sixteenths of an actual life. So it should theoretically work on older browsers if I've designed a layout for it.

If there's no layout designed for a certain generation of browser: Look no further than the text only layout. 80 Columns of pure ASCII

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The setup process is different on different systems on Windows