How to Resolve the Issue Where the Add-In’s Icons are Greyed Out¶
If after installing RGES Add-In in MS Outlook, the “Open Email Sidebar” icon and other associated icons in MS Outlook ribbon are greyed-out, unclickable, or unresponsive, that is most probably caused by a conflict with a COM (Component Object Model) MS Office add-in, e.g. Adobe PDFMaker Office COM addin, installed locally on your PC.
If this is happening to you, to be able to use Email Sidebar, try removing the unused COM add-ins from your MS Outlook setup. If this is not possible, you might consider using the Desktop/MSI implementation of Email Sidebar.
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