I followed this tutorial, but when I build then run my project in visual studio a ribbon tab does not appear. I'm using outlook 2010 if that helps.

I have asked this elsewhere, but have never found anyone knows how to build an add-in for VBA IDE using VB.NET. Is it even possible? Could someone point me to an example?

I'm trying to install the Qt add-in for Visual Studio 2019 Preview (Community), but the add-in is causing an error during installation. First I was trying it with Visual Studio 2017 (Community), b...

I cannot find any documentation, if VSTO AddIns are supported by SDK-style projects. I already installed and used h. van brakels project2015to2017.migrate2019.tool. The resulting project files are ...

I am getting "HRESULT: 0x800A03EC" error when running Excel add-in with following code: Excel.Range rng = ActiveSheet.Cells[x, y] as Excel.Range; string before = rng.Value2; string cleanV = Syst...

I am getting the error that appears in the title and I already check the security settings, I have everything enabled and the Add-in is signed. I put the screenshot of how I have the options. If I ...

I set the value of my keytip attribute for a split button to be "CKS" but when I execute the add-on in Outlook 2010, I get the hint that it's accessible using "Y7". I'm guessing it's some default t...

We use TeamCity at work. It would be nice to be able to keep an eye on checkin, build, and test run status without having to have a browser window open. I have seen references to a TeamCity Visual...

I have a question about "console.log" in Javascript Web Office Addins. Currently I am working on Javascript Word Addin and can't troubleshoot it, because I don't understand where the "console.log" ...

Following up on my previous question: VS2010 DTE Addin: project inside solution folder is not "Project" I successfully found all my projects in the solution. However, the code also founds...

Using Excel 2010 and TFS 2010. I've been using the "Team" tab in Excel for quite a while now (very useful!). Today, the "Refresh" took ages and I couldn't use Excel so I killed the process in Task ...

I have an excel add-in that keeps coming back when I start excel, even though I've removed it from the last open instance of excel (yes I checked the processes in task manager). The critter even s...

I've created an application level add-in for Excel to automate some tasks. I used the VS2012 template Visual C# > Office > 2010 > Excel 2010 Add-In. Rather than having an action pane open every ti...

I have created my customized ribbon in an addIn. Now I would like to add the New Slide command that exist in home screen (see screenshot below).

I'm trying to use Visual Studio 2008's extensibility to write an addin that will create a project folder with various messages in it after parsing an interface. I'm having trouble at the step of cr...

I had EntitySpaces Add-in for Visual Studio (all versions) installed. Upon uninstalling it, when you start up any version of Visual Studio, you get the message "could not rename add-in file". How d...

I've created an Excel Add-In, and one of the functions of this Add-In, lets say New_Years currently takes in 2 years and outputs every New Years day between those 2 years as an array in Excel. So N...

I faced a problem with using async /await in my add-in application, I have custom task pane and user can download some data with it, so there are problems: After awaited operation completed the c...

Excel COM addin is not loading during starting up and each time I have to add it manually. After checking the File > OPtions > Add-ins > Manage -> COM addins, I see that the 'add in' is in 'Unloade...

Finding information on Add-In development for Microsoft Access is like getting all of your teeth pulled! Yes I've found the couple Managed Add-In Articles written... but could find next to nothing ...

I have an excel addin that works fine in debug and release mode when I build / run from VS2010. However, when I deploy it using a windows installer it doesn't operate properly. I'm not sure what ...

I'm using a custom Add-in which adds functions to Excel, like UDF1(param1, param2). (1) example call in cell: =UDF1(param1, param2) When saving workbook1, which implements UDF(), Excel silently a...

I'd like to provide some way of creating dynamically loadable plugins in my software. Typical way to do this is using the LoadLibrary WinAPI function to load a dll and calling GetProcAddress to get...

I must work with nightmare Excel files. (I didn't create them, I just have to work with them). They were so big (more than 50 big columns and 100 big rows) then I must scroll up/down and use "<...

Is there in Visual Studio an equivalent to the Eclipse "Run Configurations"? In Eclipse I can setup hundreds of run configurations with many different command line parameters. In Visual Studio I ca...