Advanced Card Systems ACR38ET DualKey2 Driver Download (Official)

Advanced Card Systems Drivers

The ACR38ET DualKey2 is a card reader manufactured by Advanced Card Systems. This driver - "" - has been downloaded 53 times and is rated 5 out of 5 stars based on 11 reviews. It is compatible with PCs running Windows Vista and Windows XP, among other operating systems. The total disk space used for this update is 2.0 MB.

11 Ratings

Supported Models

ACR38ET DualKey2

ACR38 Smart Card Reader

ACR38 USB Smart Card Reader


Advanced Card Systems


Supported Operating Systems

Windows Vista, Windows Vista (64 bit), Windows 2003, Windows 2003 (64 bit), Windows XP, Windows XP (64 bit), Windows 2000, Windows NT4, Windows ME, Windows 98

File Name


11.11.11 (6-Jun-2008) (2003-08-11) via .inf (2006-03-24) via .inf (2005-06-14) via .inf (2007-01-12) via .inf

Additional Notes

ACR38ET DualKey2

PC/SC Drivers

USB interface

ACR38ET DualKey2 Smart Card Reader Driver File

Uploaded By

Karthikkumar (DG Staff Member) on 17-Oct-2008

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
ACR38/Drivers/USB/98ME/Usbr38.dll 110.6 KB 26 Jul 2007
ACR38/Drivers/USB/98ME/a38usb.inf 3.7 KB 4 Oct 2005
ACR38/Drivers/USB/98ME/a38usb.sys 33.3 KB 26 Jul 2007
ACR38/Drivers/USB/98ME/a38usb98.sys 17.7 KB 26 Jul 2007
ACR38/Drivers/USB/98ME/a38usbcp.inf 4.1 KB 11 Nov 2005
ACR38/Drivers/USB/98ME/acr38svr.sys 14.1 KB 26 Jul 2007
ACR38/Drivers/USB/NT/acr38unt.sys 28.9 KB 23 Nov 2004
ACR38/Drivers/USB/NT/wdusbd.sys 141.9 KB 9 Sep 2004
ACR38/Drivers/USB/NT/windrvr.sys 223.2 KB 14 Jul 2004
ACR38/Drivers/USB/Vista32/Usbr38.dll 110.6 KB 9 Aug 2005
ACR38/Drivers/USB/Vista32/Usbr3816.dll 11.4 KB 9 Aug 2005
ACR38/Drivers/USB/Vista32/ 11.1 KB 20 Jan 2007
ACR38/Drivers/USB/Vista32/a38usb.inf 3.7 KB 15 Jan 2007
ACR38/Drivers/USB/Vista32/a38usb.sys 35.7 KB 12 Jan 2007
ACR38/Drivers/USB/Vista64/Usbr38x64.dll 137.2 KB 19 Jan 2007
ACR38/Drivers/USB/Vista64/ 11.1 KB 20 Jan 2007
ACR38/Drivers/USB/Vista64/a38usbx64.inf 3.1 KB 19 Jan 2007
ACR38/Drivers/USB/Vista64/a38usbx64.sys 42.8 KB 17 Jan 2007
ACR38/Drivers/USB/XP2K/Usbr38.dll 110.6 KB 9 Aug 2005
ACR38/Drivers/USB/XP2K/Usbr3816.dll 11.4 KB 9 Aug 2005
ACR38/Drivers/USB/XP2K/ 8.3 KB 24 May 2006
ACR38/Drivers/USB/XP2K/a38usb.inf 3.7 KB 24 Mar 2006
ACR38/Drivers/USB/XP2K/a38usb.sys 33.5 KB 24 Mar 2006
ACR38/Drivers/USB/XP2K/a38usb98.inf 3.7 KB 31 May 2006
ACR38/Drivers/USB/XP64/a38usb.inf 2.6 KB 25 Aug 2005
ACR38/Drivers/USB/XP64/a38usb.sys 45.7 KB 25 Aug 2005
ACR38/ReadMe.txt 3.0 KB 6 Jun 2008
ACR38/Setup.exe 682.0 KB 3 Jun 2008
ACR38/Utility/SCBASE 757.4 KB 29 Mar 1999
ACR38/Utility/SMCLIB 140.6 KB 8 Mar 1999
ACR38/Utility/Setup64.exe 66.6 KB 27 Jul 2007
ACR38/Utility/sudelay 36.9 KB 1 Aug 2001
ACR38/Utility/x64/difxapi.dll 414.6 KB 17 Nov 2005
ACR38/Utility/x86/difxapi.dll 337.3 KB 17 Nov 2005

How to Update ACR38ET DualKey2 Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the ACR38ET DualKey2 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 Advanced Card Systems ACR38ET DualKey2 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 Advanced Card Systems 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 Advanced Card Systems 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 Advanced Card Systems. All company names/logos are properties of their owners.
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