The Microsoft Digital Media Keyboard 3000 driver situation is a classic tale of "if it isn't broken, don't fix it." Microsoft moved on to newer hardware, but the community has kept this keyboard alive through IntelliType Pro 8.2 and compatibility mode hacks.
Be sure to download the version that matches your system (64-bit or 32-bit). Key Features Unlocked Microsoft Digital Media Keyboard 3000 Driver
Some users have success using PowerToys (Microsoft's open-source utility) to manually map the extra keys via Keyboard Manager, but this is cumbersome and does not support the zoom slider. The Microsoft Digital Media Keyboard 3000 driver situation
This article covers everything you need to know about the driver situation, legacy software (IntelliType Pro), manual installation tricks, and how to keep your classic keyboard running on modern hardware. This article covers everything you need to know
The IntelliType Pro service is not running. Fix: Press Win + R , type services.msc , and locate "Microsoft IntelliType Pro Service." Ensure it is set to Automatic and Started . If missing, reinstall the driver.