Mercury SoftK56 Data Fax Driver Download (Official)

Mercury Drivers

The SoftK56 Data Fax is a modem manufactured by Mercury. If you cannot connect to the network, or have slow transfer speeds or intermittent disconnection problems, you may need to update your modem driver or firmware. This version of "Driver_VD56UC2_WinXP.exe" is rated (5 out of 5 stars) based on 587 downloads and 14 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 1.2 MB.

14 Ratings (see all reviews)

Supported Models


SoftK56 Data Fax




Supported Operating Systems

Windows XP

File Name


V (2002-04-11) via .inf

Uploaded By

Slymiex Levi (DG Member) on 26-Jan-2006

Most Helpful Reviews

4 of 5 people found the following review helpful:
Tested on Windows XP
9 Sep 2008
(7 minutes after download)

Installation: 5 out of 5
Stability: 5 out of 5
Compatibility: 5 out of 5
"I came across MSi Wind Notebook, which did not have a dial-up modem integrated. Then, I found this old Mercury VD56UC2 with USB connection. I was sceptical about it, but (to which I am loyal for 6 years now)never failed in search for drivers. Driver worked perfectly, and thanks to it I have another satisfied customer. Highly recommended, works as charm! All
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4 of 5 people found the following review helpful:
Tested on Windows XP x64
15 Mar 2006

Installation: 5 out of 5
Stability: 5 out of 5
Compatibility: 5 out of 5
"Just the job for this old usb modem ;-)"
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See all Mercury SoftK56 Data Fax ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
WinXP/CNXStd.cty 228.1 KB 13 Jan 2003
WinXP/CSACPL.CPL 316.9 KB 30 Jan 2002
WinXP/DISK1 23 bytes 4 Feb 2002
WinXP/DUSBUT5.CAT 27 bytes 28 Jun 2000
WinXP/DUSBUT5.INF 28.1 KB 8 Aug 2003
WinXP/FIRMWARE.BIN 6.5 KB 9 Mar 2002
WinXP/HSFHWCD2.SYS 168.3 KB 21 Apr 2002
WinXP/HSFINST.DLL 12.1 KB 25 Dec 2001
WinXP/HSF_CNXT.SYS 595.4 KB 11 Apr 2002
WinXP/HSF_DP.SYS 1.2 MB 11 Apr 2002
WinXP/HXFSetup.exe 282.6 KB 5 Mar 2002
WinXP/MDMXSDK.SYS 9.9 KB 22 Oct 2001
WinXP/MdmXSdk.dll 57.3 KB 22 Oct 2001

How to Update SoftK56 Data Fax Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the SoftK56 Data Fax 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 Mercury SoftK56 Data Fax 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 Mercury 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.

This website is not affiliated with Mercury. All company names/logos are properties of their owners.
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