The Microsoft Exchange POP3 service  stuck in an infinite state of  ”Starting” status after tried to manually restart it .

Try

1. Open Task Manager. [Ctrl+Alt+Delete]
2. Find the process “inetinfo.exe” .
3. Click on ‘End Process’

The service should now start .

This how-to walks through the process of manually updating offline address books for users from Exchange 2003 as well as the Global Address List.

1. Open Exchange System Manager
   This how-to was actually made on a WS2003STD SP2.
2. Expand Recipients and Select “Offline Address Lists”
3. In the right pane, right click the “Default Offline Address List” and select “Rebuild”
4. It will give you a prompt about how long it can take
   Just click “Yes”
5. Repeat this for the “Global Address List”
   In the left pane, now click on “Recipient Update Services”
6. In the right pane, right click on each choice, first selecting “Update Now” on both, and then again selecting “Rebuild” on both
7. That’s all

This can take several hours though, with my 100 users it generally takes about 40 minutes max.

I would also submit that you can manually re-download the address books via Outlook by selecting the small arrow next to send/receive and then clicking on (you guessed right!) “Download Address Book”.