I know nothing about IS200 or IS400, but you say that IS400 uses a parallel port. However, you then say that you "ticked Pooling and gave different Com"... Parallel ports and Com ports are different beasts entirely, so assigning any com port to the IS400 will get you nowhere. You then ask about installing a PCI parallel port driver. I doubt that any Windows 10 computer has a parallel port built in, so did you install or have installed a PCI parallel port card? If not, then installing said driver will not help either. If so, then it should have its own driver on a disc that came with the card, or at the manufacturer's website and that is the driver you should install.