Lucent Controllerless Modem Port Driver Download

15 Ratings (see all reviews)

Supported Models

MDP7800-U Modem Driver

Controllerless Modem Port Driver




Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1

File Name

Uploaded By

DriverGuide (DG Staff Member) on 9-Sep-2003

Ratings & Reviews

See all Lucent Controllerless Modem Port ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Lang.dat 4.5 KB 20 Oct 1997
Setup.ini 2.0 KB 7 Aug 1998 204.2 KB 15 Jul 1998
Instmdm.dll 30.2 KB 15 Jul 1998
Setup.lid 49 bytes 15 Jul 1998
Ltports.inf 639 bytes 11 Dec 1997
Setup.exe 60.4 KB 23 Jan 1998
Ltmodem.sys 444.5 KB 18 Jul 1998
Setup.ins 102.4 KB 15 Jul 1998
MDMP4100.INF 45.9 KB 31 Aug 1998
Data.tag 124 bytes 15 Jul 1998 3.0 KB 15 Jul 1998
_inst32i.ex_ 290.7 KB 23 Jan 1998
_setup.dll 11.3 KB 23 Jan 1998
Layout.bin 334 bytes 15 Jul 1998 47.2 KB 15 Jul 1998
Os.dat 417 bytes 6 May 1997
_isdel.exe 8.7 KB 27 Jan 1998

How to Update Controllerless Modem Port Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Controllerless Modem Port driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Lucent Controllerless Modem Port into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Lucent Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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