Outlook Freezing tell Exchange service restarted.

[Winter F]

Server:
Windows NT Small Business
Exchange 5.5 SP4
NOTE: The server is also a SQL server, InterBase, and a Norton's
Anti-Virus server.

Client:
Windows 2000 Pro
Outlook/Office 2000
Norton's Anti-Virus

Problem:
About once to twice a week outlook (on all clients 30+) will not
connect to the exchange server or outlook is connecting but it's
freezing on the client computers.

Temp fix:
Restart the Exchange service on the server.

Dose any one know how to fix the problem so that I don't have to keep
restarting the exchange service?

 

[Winter F]

I fixed the problem:

I stopped the Microsoft Licensing service.