Conexant D400,External USB 56K Modem, v.drv_Vista32_V2.0.15.51, A02

Conexant D400 External USB 56K Modem Vista32 Driver V2.0.15.51

Fixes & Enhancements


Universal CoInstaller
1.When modem is reinstalled ,'Found New HW Wizard' window prompts on dual byte language supported OS
2.CoInstaller will now reset the device when a driver upgrade is completed to ensure that new driver installation is successful.
3.If there are multiple INFs with the same PNP ID in the package. The CoInstaller chooses the most appropriate INF to install based on it being signed and having the highest version.
4.When the driver is upgraded and the INF name differs to the existing one installed, there will be two folders on the system. This was fixed by removing the old one and keeping the current one only.
5.Feature to install certain parts of an INI based on its PNP ID
6.Windows permits to have more than one AddReg or CopyFile entry in a section. It was assumed only one such entry is in a section is permitted. This was fixed by removing this limitation.

Universal Installer/Uninstaller
1.Sometimes GUI reports success on a failed installation

Digital Call Progress
1.No call progress when system resumes from Hibernation state
2.Intermittent system lock during uninstallation of modem drivers on Windows 2000
3.Fixed possible driver verifier crash (reason IRP_URB_DOUBLE_SUBMIT)


Version drv_Vista32_V2.0.15.51, A02



Release date

12 Dec 2007

Last Updated

03 Nov 2011


Available formats

File Format:Hard-Drive
File Name:R170498.exe
Download Type:HTTP
File Size: 1 MB
Format Description:This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of files. Follow the instructions to complete the installation.
To ensure the integrity of your download, please verify the checksum value.
Not available
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By downloading, you accept the terms of the Dell Software License Agreement.

Supported Operating Systems
Windows Vista, 32-bit
Applies to
Conexant D400 External USB 56K Modem
Installation instructions
Custom Instructions for R170498.EXE:

Hard Drive Installation (via WinZip) with Setup.exe File for R170498.EXE


1.Click Download Now, to download the file.
2.When the File Download window appears, click Save (Windows XP
users will click Save) this program to disk and click OK. The Save In:
window appears.
3.From the Save In: field, click the down arrow then click to
select Desktop and click Save. The file will download to your desktop.
4.If the Download Complete window appears, click Close. The file
icon appears on your desktop.


1.Plug USB MODEM to an available USB port.
2.Double-click the new icon on the desktop labeled R170498.EXE.
3.The Self-Extracting window appears and prompts you to extract or
unzip to C:\DELL\DRIVERS\R170498. Write down this path so the executable (I.e.
Setup.exe) file can be found later.
4.The Self-Extractor window appears.
5.Click OK.
6.After completing the file extraction, if the Self-Extractor
window is still open, close it.
7.Click the Start button and then click Run.
8.Type C:\DELL\DRIVERS\R170498 in the Open textbox and then click OK.
9.Follow the on-screen installation instructions.
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).