FAQ on Custom Capabilities

How are custom capabilities different from other capabilities?

  1. Microsoft partners can define custom capabilities.
  2. Custom capabilities do not have to be built in to Windows at compile time.
  3. Windows verifies that an app is authorized to use a custom capability when the app installs. For other capabilities, this verification happens when the Windows Store receives the app submission.

What's the difference between UWP apps with custom capabilities and Device Companion Apps (DCAs)?

DCA UWP app with custom capabilities
Communication Device Scenario APIS (image capture, scanning, etc.)
Device protocol APIs (USB, HID, etc.)
Customer driver access
Trust Model Defined at a "container" level
The system's OEM must submit apps for internal components
Defined at a system level
The system's OEM must submit apps for internal components
Automatic App Acquisition Available for peripherals Available for all hardware
Deployment Dependencies WU: Driver package
Store: App
WU: Driver package
Store: App

For more information on DCAs, see Getting started with Microsoft Store device apps.