You will see that Microsoft keeps their driver database updated for the latest devices.
Item Tag: IntelliPoint 4.1
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Microsoft IntelliPoint 4.1 Utility Suites CD for Windows Multilingual
You will notice that Microsoft updates often improve performance without breaking anything.
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Microsoft IntelliPoint 4.1 Drivers Update CD Multilingual X08-67013 with Guide
What stands out about Microsoft is how their utilities integrate seamlessly with Windows updates.