I've been using Outlook Redemption's ActiveInlineResponsePopOut method in my application. From feedback I've gotten, the method seems to work fine with most installations of Outlook 2016. However, on certain machines, the method doesn't work (i.e., the mailitem doesn't pop out) and I will get the following exception:
>Exception type: System.Runtime.InteropServices.COMException
>Message: Could not find the toolbar control
>Source: redemption.SafeExplorer
>StackTrace: at Redemption.ISafeExplorer.ActiveInlineResponsePopOut()
From what I can gather, it seems the problem started with Outlook 2016 version 16.0.7571. Earlier versions of Outlook 2016 (both 32 and 64 bit) seem to work fine.
Has anyone else also seen this behavior? Is there any work-around?