Summary of the registry keys that ZCO uses

Summary of the main registry locations used by the ZCO

Below is a summary of the registry keys used by ZCO:

Key Description
HKCU\Software\Zimbra ZCO user configuration
HKLM\SOFTWARE\Wow6432Node\Zimbra ZCO system wide configuration (32 bit Outlook on 64 bit Windows)
HKLM\SOFTWARE\Zimbra ZCO system wide configuration (32 bit Outlook on 32 Windows
Or 64 bit Outlook on 64 bit Windows)
HKCU\Software\Microsoft\Office\<version>\Outlook\Profiles Outlook profiles (Outlook 2013 onwards)
HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles Outlook profiles (pre Outlook 2013)
HKLM\SOFTWARE\Clients\Mail\Microsoft Outlook MAPI DLL path and pointer to Outlook language keys
HKCU\Software\Microsoft\Office\<version>\Outlook\Options\Calendar\Internet Free/Busy Free/Busy Read URL(Default Free Busy)
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones Windows Time Zone definitions

WSEARCH Registry keys

Zimbra stores don’t get indexed by default unless we have below reg. subkeys keys added to below registry paths:

Key Subkeys Values Description
HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\Windows Search\Preferences {D00FDE68-3E80-4f8c-899D-D9DD16BA7D1D}
{FA9628A0-F223-4d5d-B314-E01BC8100572}
DWORD 1
DWORD 1
for 32 bit MSI based Outlook on 64 bit Windows
HKLM\SOFTWARE\Microsoft\Windows\Windows Search\Preferences {D00FDE68-3E80-4f8c-899D-D9DD16BA7D1D}
{FA9628A0-F223-4d5d-B314-E01BC8100572}
DWORD 1
DWORD 1
for 32 bit MSI Outlook on 32 bit Windows Or

for 64 bit MSI Outlook on 64 bit Windows

HKLM\SOFTWARE\Microsoft\Office\ClickToRun\REGISTRY\MACHINE\Software\Wow6432Node

\Microsoft\Windows\Windows Search\Preferences

{D00FDE68-3E80-4f8c-899D-D9DD16BA7D1D}
{FA9628A0-F223-4d5d-B314-E01BC8100572}
DWORD 1
DWORD 1
for 32 bit Click-to-run Outlook on 64 bit Windows
HKLM\SOFTWARE\Microsoft\Office\ClickToRun\REGISTRY\MACHINE\Software

\Microsoft\Windows\Windows Search\Preferences

{D00FDE68-3E80-4f8c-899D-D9DD16BA7D1D}
{FA9628A0-F223-4d5d-B314-E01BC8100572}
DWORD 1
DWORD 1
for 32 bit click-to-run Outlook on 32 bit Windows Or
for 64 bit click-to-run Outlook on 64 bit Windows

Note- In case Microsoft upgrades to Office and Windows revert the Zimbra registry changes made. ZCO notices this on Outlook start up and aims to fix it by opening a dialog

Verified Against: ZCO 9.0 Date Created: 2021-02-17
Article ID: https://wiki.zimbra.com/index.php?title=Summary_of_the_registry_keys_that_ZCO_uses Date Modified: 2021-02-17



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