ACTiSYS ACT-IR4000US Driver Download

ACTiSYS Drivers

The ACT-IR4000US is a device manufactured by ACTiSYS. You can unlock features and improve performance by updating its driver. This version of "" is rated (2 out of 5 stars) based on 636 downloads and 7 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 1.5 MB.

7 Ratings (see all reviews)

Supported Models




Supported Operating Systems

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

File Name

Versions (2001-09-21) via .inf

Uploaded By

Fung (DG Member) on 28-Sep-2004

Ratings & Reviews

See all ACTiSYS ACT-IR4000US ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
IR_4000US/License/SETUP.INI 58 bytes 12 Jul 2001
IR_4000US/Setup.ini 239 bytes 28 Aug 2002
IR_4000US/Drv98/STIRUSB.SYS 30.1 KB 5 Mar 2002
IR_4000US/Drv98/stirusbinf.w98 4.9 KB 28 Aug 2002
IR_4000US/Drv98/STIRUSB.CAT 358 bytes 14 Sep 2000
IR_4000US/Drv98/STIRUSB.INF 4.9 KB 28 Aug 2002
IR_4000US/DATA1.CAB 956.6 KB 28 Aug 2002
IR_4000US/IKERNEL.EX_ 344.9 KB 5 Sep 2001
IR_4000US/Drv2k/STIRUSB.SYS 30.1 KB 24 Sep 2001
IR_4000US/Drv2k/STIRUSB.CAT 358 bytes 14 Sep 2000
IR_4000US/Drv2k/STIRUSB.INF 4.1 KB 28 Aug 2002
IR_4000US/Setup.exe 168.4 KB 5 Dec 2003
IR_4000US/LAYOUT.BIN 417 bytes 28 Aug 2002
IR_4000US/DATA2.CAB 47.1 KB 28 Aug 2002
IR_4000US/DrvXP/IRSTUSB.CAT 358 bytes 14 Sep 2000
IR_4000US/DrvXP/IRSTUSB.SYS 30.1 KB 24 Sep 2001
IR_4000US/DrvXP/IRSTUSB.INF 4.1 KB 28 Aug 2002
IR_4000US/DrvME/STIRUSB.SYS 27.9 KB 10 May 2002
IR_4000US/DrvME/stirusbinf.wME 5.0 KB 28 Aug 2002
IR_4000US/DrvME/STIRUSB.CAT 358 bytes 14 Sep 2000
IR_4000US/DrvME/STIRUSB.INF 4.9 KB 28 Aug 2002

How to Update ACT-IR4000US Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the ACT-IR4000US 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 ACTiSYS ACT-IR4000US 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 ACTiSYS 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 ACTiSYS. All company names/logos are properties of their owners.
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