Add-in Express Blog: Recent Episodes
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All about developing COM add-ins, smart tags and RTD servers in Visual Studio .NET, VSTO and Delphi + Add-in Express
Once in a couple of years Microsoft contacts us on this or that topic. The last topic was the Excel performance on Windows Desktop. They demonstrated a case where enabling an Add-in Express add-in produced an astounding 90-second delay when selecting another cell while Excel was busy with some long calculation
Today, I’m following Microsoft recommendations and using code fragments they provide to investigate the behavior of a System.Windows.Forms.Form (simply a form)
In the first blog of this series, I showed issues related to using several monitors with different DPIs. To get an explanation of those pretty confusing results, let’s check resources available on the web.
Quite often these days you see this configuration: a notebook and an external display or two connected to the notebook. All these displays may have different DPIs. This is a typical environment where DPI-related issues reveal themselves.
Just recently we've got a comment declaring one of our blogs on releasing COM objects "wrong and misleading": the author says Marshal.ReleasingComObject() and related things made him spend "lots of time on writing code that is totally unnecessary" and provides many links supporting the idea that you can use GC.Collect() to get rid of non-released COM objects.
Quick news: we've developed a new version of sample COM add-in projects that we provide in the downloadable archive on the Add-in Express .NET Downloads page
You might already know that Office 365 and Office 2019 are, in fact, subsequent builds of Office 2016: in any Office 365 and Office 2019 application, the Application.Version property returns a string that starts with "16"
I see this issue in the Sent Items folder on an Exchange account having Cached Exchange Mode turned on. Reportedly, turning the Cached Mode off solves the issue. The Outlook version used (Outlook 365 in my case) seems to be irrelevant as Google reports a similar conflict to occur in Outlook 2007
The number of users having the Office version installed from Microsoft Store increases every day as computer vendors install it by default; see e.g. this support article from Dell. Per-user add-ins and some per-machine add-ins may run into a severe issue with that Office version. The issue is: the add-in uses old versions
Version 9.2 of Add-in Express for Office and .net is published, and we now announce full support for all versions of Office 2000 through 2019 32-bit and 64-bit