The RT9420 is a type of mouse manufactured by Microsoft. Updating this driver fixes tracking problems, intermittent or no connectivity and can unlock some advanced features of your type of mouse. Visitors have downloaded this file "ITP2_1EngNoMsi.exe" 145 times with an aggregate rating of 5 out of 5 stars based on 3 reviews. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 5.1 MB.
RT9420
Windows XP, Windows 2000
2.1 English (24-Sep-2001)
Found this archived on my hard disk after looking for an hour on the internet for a driver for my Microsoft Internet Keyboard Pro (Microsoft discontinued the model).
It works with Windows XP (I have it installed) so it should work with Windows 2000. The driver is old enough that it is likely to work with Windows 98 as well, but don't quote me on that.
If you have an Internet Keyboard Pro (and Windows XP), all your buttons will work with this driver, but you wont get the cool fade-in and fade-out of the volume control that Microsoft introduced with the newer drivers (that don't support this keyboard).
Does it work in Vista? I have no idea.
Hope this works for you though.
Mr. Bombastic (DG Member) on 1-Feb-2007
To get the RT9420 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 Microsoft RT9420 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 Microsoft 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 Microsoft website. Most major device manufacturers update their drivers regularly.
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.
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
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
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.