By default, the Security tab is missing in the Exchange System Manager of Exchange 2000 and Exchange 2003. To display the permissions tab, you have to make a change to the registry.
Here is the correct path to navigate:
HKEY_Current_UserSoftwareExchangeExAdmin.
When you reach the above section of the registry you need to create a DWORD called ShowSecurityPage.
A value of 1 (Numeric one) means on, whilst 0 (Zero) means off.
Close the Exchange System Manger, then reopen (no need for a reboot).
For more info: KB 264733
Hans Sleurink
Hans Sleurink works as a Consultant at Wortell in the Netherlands where he designs and deploys Unified Communications solutions. His main focus is on, but not limited to, Microsoft Teams (migrations), including Enterprise Voice, contact center solutions, AudioCodes, Direct Routing, Exchange, Office 365, Active Directory and other UC related topics.
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