How can I get my Plug and Play modem to work in NT 4.0? 1. On the Windows NT4 CD-ROM, go to the \drvlib\pnpisa\x86 subdirectory. In that subdirectory, right-click on PNPISA.INF and choose Install. (if you don't see this file, click View\Options\View\ and select "Show all Files" and unselect "Hide extensions for known file types") 2. Reboot when prompted. 3. Log onto your computer with Administrator privileges. 4. Once NT 4.0 restarts, you will see "New Hardware Found" and then be prompted to install the driver diskette for your card. 5. After you manually choose the modem (NT 4.0 cannot automatically tell which modem you have), you must set the COM port name, Address, and IRQ. 6. Once you have changed the settings, restart to update the system to complete installing the Plug and Play modem.Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.