I’m so confused so if I install mach3 on my pc (win xp) with the driver part my g code doesn’t loads but is not right in the tool path if I load it without the driver part it loads perfect but then can’t use the cnc 🤯🤯 I’m using a hobby cnc desktop with lpt port please help Iv tried lots of different g codes 

Without a license, limit is 500 lines with driver loaded.
Without driver loaded Mach3 works in preview mode without generating movements.
So, no need to cry 

Yes I know that it’s defo not due to the limitations as I have uninstalled it and reinstalled without the driver and loads perfect but then the cnc will not drive
Re load it with the driver and the code not work right but I can get the cnc to move

So you did not get it.
Without driver and without license Mach3 will load all G-code for preview - no motion of machine.
With driver and without license - 500 line limit
With driver and with license - almost no limit on G-code size