How to detect USB arrive/remove in the HealthVault strcuture

Hi all,

I use the FabrikamBloodPressure sample to add my own code, and there are
some function need to complete (e.g, OnDeviceArrival).

And i have search some method to solve this question, but it all not work
(e.g, RegisterDeviceNotification).

There are some other discussion.
<a
href="http://social.msdn.microsoft.com/Forums/en-US/healthvault/thread/aa7d26ce-a044-401f-bdc4-42d1416e6839">Thread 1</a>
<a
href="http://social.msdn.microsoft.com/Forums/en/healthvault/thread/a14a1467-dcda-4300-91b9-b08b93286aa4">Thread 2</a>

Is there any other solution to solve this?

Thanks a lot.