To re-enable the Outlook Add-in , in Outlook:
Click File and then click Options, Add-ins.
Click the dropdown menu next to Manage and choose Disabled Items.
Click Go.
If outlook-add in is included in the list.
Click on it, click Enable and then click Close.
Click the dropdown menu next to Manage and choose COM Add-ins.
Click Go.
Find the Outlook-add in through this list.
Tick it and Click OK.
If the Outlook Add-in does not appear, restart Outlook.
To disable the Outlook Add-in, in Outlook:
Click File and then click Options, Add -ins.
Near the bottom centre, click Go.
Find the RDB ProNet Outlook Add-in and untick it.
Click OK.
Restart Outlook.
