Does easClientDeviceInformation.id return a unique id?

Question

Hi,

I would like to now whether the id returned from easClientDeviceInformation.id; is unique for a device (computer/surface/tab etc). Is this likely to change? I have to use this id in my app to uniquely identify the device.

Ref: http://msdn.microsoft.com/en-us/library/windows/apps/windows.security.exchangeactivesyncprovisioning.easclientdeviceinformation.id.aspx

Thanks,

Neena

Answer 1

But this is user specific? If another user logs in to the device, the id changes.

Answer 2

Hi,

There is no way to find the Device ID of the machine / tablet on which the Metro app is running. For Windows 8 Device experience you can refer to -- http://msdn.microsoft.com/en-us/library/windows/hardware/br259108.aspx

Also, you can get the Computer Name (if that will do). Reference - http://social.msdn.microsoft.com/Forums/en-US/winappswithcsharp/thread/2ca0d5de-9db5-4349-839c-e01ff614ec6e

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Answer 3

Come on Song Tian, answer the question. It's a simple yes or no question. Is the ID user-specific?

Answer 4

Hi,

The Id property represents the DeviceId using the GUID truncated from the first 16 bytes of the SHA256 hash of MachineID, User SID, and App ID where the MachineID uses the SID of the local users group.

This ID is not unique id. But it is user-specific.

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Roy
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Answer 5

Will this Id ever change for a particular user on a particular machine?