SCM Microsystems SCR333 Driver Download

SCM Microsystems Drivers

The SCR333 is a card reader manufactured by SCM Microsystems. This version of "" has been downloaded 78 times with a user rating of 4 out of 5 stars, based on 5 reviews. The uploader reports that this update will work successfully on PCs running Windows XP. The total disk space used for this update is 272.8 KB.

5 Ratings

Supported Models




SCM Microsystems

Supported Operating Systems

Windows 2003, Windows XP, Windows ME, Windows 98SE, Windows 98

File Name

Versions (2004-10-21) via .inf

Additional Notes

Secure Card Readers

This firmware is only for the SCR333 USB reader manufactured and distributed by SCM Microsystems.Downloading this firmware to other readers could result in reader becoming non-functional.

Note: If you are using the smart card reader in a corporate environment, check with your site administrator if the software being used shall be compatible after the reader has been upgraded.

If you are using an OEM version of reader that was manufactured by SCM Microsystems, please contact the OEM for firmware updates.

Uploaded By

sundar (DG Staff Member) on 29-Apr-2005

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
FIOSx33x.dll 143.4 KB 24 Jun 2004
FwResorc.dll 102.4 KB 24 Jun 2004
FwUpdate.exe 241.7 KB 24 Jun 2004
FwUpdate.ini 500 bytes 14 Apr 2005
SCR333S_V518.bin 32.8 KB 15 Oct 2004 7.8 KB 3 Nov 2004
STC2DFU.INF 1.4 KB 25 Oct 2004
STC2DFU.sys 7.8 KB 25 Oct 2004
Sx33XRES.dll 41.0 KB 24 Jun 2004

How to Update SCR333 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the SCR333 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 SCM Microsystems SCR333 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 SCM Microsystems Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the SCM Microsystems website. Most major device manufacturers update their drivers regularly.

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 SCM Microsystems. All company names/logos are properties of their owners.
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