Silitek (T)SF-1156v(+)/R21 Driver Download (Official)

Download the latest version of the (T)SF-1156v(+)/R21 driver for your computer's operating system. This version of "" is rated (5 out of 5 stars) based on 32 downloads and 9 reviews. Compatibility for this driver update includes PCs running Windows operating systems such as Windows XP. The total disk space used for this update is 1.8 MB.

9 Ratings

Supported Models


K56 parallel, Data, Fax

K56 parallel, Voice

K56 parallel, Voice, Speakerphone

K56 parallel, Voice, Speakerphone, DSVD

K56 serial, Voice, Speakerphone

K56 serial, Voice, Speakerphone unimodem

K56 serial, Voice, Speakerphone, DSVD






Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE, Windows 98, Windows 95

File Name

Additional Notes

Modem Firmware File


upgrade to V.90

Uploaded By

Nagarajah (DG Staff Member) on 9-Feb-2006

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
EEPROG.EXE 37.2 KB 25 Mar 1996
FLASH10C.GVC 1.5 KB 26 Oct 1998
FLASH11A.GVC 1.5 KB 26 Oct 1998
FLASH14A.GVC 1.5 KB 26 Oct 1998
FLASH15A.GVC 1.5 KB 26 Oct 1998
FLASH16B.GVC 1.5 KB 26 Oct 1998
FLASH22B.GVC 1.5 KB 26 Oct 1998
FLASH3C.GVC 1.5 KB 26 Oct 1998
FLASH40A.GVC 1.5 KB 26 Oct 1998
FLASH41C.GVC 1.5 KB 26 Oct 1998
FLASH4C.GVC 1.5 KB 26 Oct 1998
FLASH6B.GVC 1.5 KB 26 Oct 1998
FLASH8B.GVC 1.5 KB 26 Oct 1998
FLASHCOM.EXE 98.3 KB 6 Mar 1998
GVC.BAT 10.1 KB 29 Jan 1999
GVC0505.TXT 688 bytes 27 Jun 1997
GVC0565.TXT 688 bytes 22 May 1998
INSTALL.EXE 38.5 KB 12 Dec 1995
K56P.S37 392.3 KB 10 Aug 1998
K56S.S37 394.0 KB 10 Aug 1998
README.TXT 2.4 KB 2 Apr 1998
ROCK230.INF 33.2 KB 1 Nov 1997
ROCKSER.VXD 23.2 KB 18 Oct 1997
Readme.doc 351.2 KB 22 Jan 1999
SETMODEM.EXE 62.9 KB 15 Aug 1997
V90-1M.INF 15.7 KB 26 May 1998
V90-1MW.INF 1.3 KB 19 May 1998
V90PA.S37 393.0 KB 20 Aug 1998
V90PB.S37 393.0 KB 20 Aug 1998
V90PC.S37 392.2 KB 20 Aug 1998
V90SA.S37 395.1 KB 20 Aug 1998
V90SB.S37 395.1 KB 20 Aug 1998
V90SC.S37 394.3 KB 20 Aug 1998
WAVRSS.INF 3.8 KB 2 Dec 1997
XMDL003.S37 12.1 KB 6 Mar 1998
XMUL003.S37 14.9 KB 6 Mar 1998

How to Update (T)SF-1156v(+)/R21 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the (T)SF-1156v(+)/R21 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 Silitek (T)SF-1156v(+)/R21 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 Driver Update Utility for Silitek (T)SF-1156v(+)/R21. 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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