After installation or update, the REDDOXX Addin can not be started.
Outlook might report, that the REDDOXX Addin was deactivated.
Reason for this behavior is the Add In Resiliency in Outlook, that was implemented since Office 2013 to deactivate Add Ins, when Outlook is running slow.
The following steps are required as a work around to the Add In Resiliency behavior:
1 - Close Outlook
2 - Start regedit
3 - Delete all entries in HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\xx.x\Outlook\Resiliency\DisabledItems and in
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\xx.x\Outlook\Resiliency\CrashingAddinList.
xx.x refers to the office version number and needs to be adjusted accordingly
Warning: Each previously deactivated and crashed Addins will be activated at start (but it is required, as one cannot know which entry refers to which Addin).
4 - Create a new DWORD Entry with the name ReddoxxAddin.AddinModule and the Value 1 in the folling path:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\xx.x\Outlook\Resiliency\DoNotDisableAddinList
xx.x refers to the office version number and needs to be adjusted accordingly
5 - Start Outlook and deactivate all Addins that you wish to be deactivated (to fill the List that was previously given in step 3).
You might also give the following Regfix File a try, but use with caution
For Outlook 2013: RegFix-2013.zip
For Outlook 2016 and newer: RegFix-2016.zip
Also make sure that Outlook has the lastest Updates installed (File => Office Account => Office Updates)