---
page_type: sample
description: "Demonstrates how to extend the WpdHelloWorldDriver sample so that it supports a simulated device with a Contacts device service."
languages:
- cpp
products:
- windows
- windows-wdk
---

# WPD service sample driver

Demonstrates how to extend the WpdHelloWorldDriver sample so that it supports a simulated device with a Contacts device service.

## Related topics

[WPD Design Guide](https://docs.microsoft.com/windows-hardware/drivers/portable/wpd-design-guide)

[WPD Driver Development Tools](https://docs.microsoft.com/windows-hardware/drivers/portable/familiarizing-yourself-with-the-sample-driver)

[WPD Programming Guide](https://docs.microsoft.com/windows-hardware/drivers/portable/wpd-programming-guide)