What dot matrix printers are capable for vista?
There are quite a few that are Vista compatible as seen just on the link you provided. As for your question about the “Driver 1 what does that mean?”, if you look back on the web page of the link you provided and look at the very bottom of the listing for the definition of the “1” symbol you will see: *1 INBOX Driver is Printer Driver that is included in Windows Vista. This means that the driver for the printer is already built-in to Vista and all you should need to do is connect the printer to your computer and it should load automatically. If you really want to downgrade to XP, you’ll need to purchase a full version of Windows XP and install it over your existing Vista OS. But be careful as it may not have all of the drivers for your computer and you may have to search for and download them as needed for specific devices on your computer. Best of luck.