I have windows xp sp3 installed on this workstation with a small business version of office 2007. Recently my client installed Windows Desktop Search 4.0 on this machine. The functionality of this app is something that he finds quite useful. However, whenever the index service runs, while outlook is open, it tries to index outlook and I am assuming it is unsuccessful because it generates a repeated error tone from the pc's speaker. It almost sounds like there is a dialog box in the background that it is trying to open with an error message but is not doing so. If I go to task manager and kill the process called searchprotocolhost.exe the beeping noise stops, but then so does my index. I can also keep it from happening by disabling the Windows Search service, but again this defeats the purpose. I have tried removing and reinstalling the Windows Desktop Search 4.0 to no avail. Another curious fact is that if I go into indexing options in the control panel and click the modify button to change where the indexing service looks, a username and password screen pops up asking me to sign into my exchange profile (using rpc over https). This is expected, but when I enter the same password I enter when I open outlook, it comes back with an error of incorrect username or password. I don't know if this issue is related or not, but it is unexpected.