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USB DIRECTORS RS-232
5. Troubleshooting

5.1 Using USB with Windows 95

If you’re having difficulty installing or operating your
USB Director RS-232 in a Windows 95 system, check the
revision level of your copy of Windows 95. If you are
using Windows 95 OSR2.1 or above, take the steps
described in Sections 5.1.1 through 5.1.4. If not, you will
need to upgrade to a more recent version of Windows.
5.1.1 C
HECKING FOR
USB H
ARDWARE
To verify that the necessary USB host controller is
installed in your system, make sure that your PC has
USB connectors. If it doesn’t, your PC will not support
USB regardless of which Windows version it’s running.
You will need to purchase a PCI USB controller card.
If your PC has USB connectors, verify that the USB
hardware is enabled in your system BIOS configuration.
In some cases your manufacturer may have elected to
ship your PC without the USB-support drivers installed.
If the two USB-hardware listings that should be there
(“root hub” and “host controller”—see Section 5.1.3)
are absent in your Device Manager, you will need to
upgrade to a more recent version of Windows.