How do I erase all of Communicator 5 Speech History at one time?

To clear all of a Communicator 5 user's Speech history all at once:

1. Shut down Communicator 5 software.

2. go to:

    C:\Users\"Windows User Folder"\AppData\Roaming\Tobii Dynavox\Communicator\5\Users\"Communicator 5 User Folder"\Phrases

3. Delete the file "Speech History.phr"

4. Re-launch Communicator 5 and verify My Phrases Speech History is now clear.