Please install OS2XL in MPC1000.
Next, please start OS2XL.
After OS2XL starts, please press the [MODE] key and hit PAD3.
Product ID is displayed on a screen.
(Explanation site)
 
When Product ID is 8 characters, please click here
 
 
When Product ID is 7 characters, please click here
(The user who installed OS2XL in MPC into which the password of OS1 is entered)
 
 
When Product ID is 6 characters, please click here
(The user who installed OS2XL in MPC into which the password of OS2 is entered)