How do I create a custom paper size for my product in Windows?

• Do the following:
  
  1. Open the Printers or Printers and Faxes window.
  2. Right click you Epson Printer and select Printing Preferences.
  3. On the Main or Paper tab, select User Defined from the Paper Size drop down menu.
  4. Enter the custom paper size and name.
  5. Click Save then OK.
  6. Click OK.
  How do I create a custom paper size within my Epson Windows printer driver?