Print not working in DOS Prompt - LPT3 is found, & LPT1 is not present

Issue: Print not working in DOS Prompt, since the printer port is LPT3 [Latest intel boards won't have LPT ports, customer installed the add-on LPT port for us, by default it is found as LPT3]

Solution: We can change the Port number in
Right click My computer - Properties - Hardware - Device manager
Double click on Ports (COM & LPT)
Right click on LPT3 - Properties
Goto "Port settings" tab
Change the LPT Port number as "LPT1" and save the dialog box

Then it will print from DOS Prompt