I am developing an Outlook Addin project using C # .NET 4.5, but after I deploy, sometimes Outlook shuts down my application and displays this message. “This add-on caused prospects to start slowly.” “I don’t know what happened with my add-on. It has only a few codes, and ThisAddIn_Startup is empty in this project. Here is the code ...
public partial class ThisAddIn
{
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
}
private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
{
}
protected override Microsoft.Office.Core.IRibbonExtensibility CreateRibbonExtensibilityObject()
{
return new Ribbon1();
}
#region VSTO generated code
private void InternalStartup()
{
this.Startup += new System.EventHandler(ThisAddIn_Startup);
this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown);
}
#endregion
}
<?xml version="1.0" encoding="UTF-8"?>
<customUI xmlns="http://schemas.microsoft.com/office/2009/07/customui" önLoad="Ribbon_Load">
<contextMenus>
<contextMenu idMso="ContextMenuContactItem">
<menuSeparator id="mniMailItemMenuSeparator" />
<button id="customButton"
label="Call using Software" insertBeforeQ="Copy"
imageMso="Call"
önAction="OnMyButtonClick" />
</contextMenu>
<contextMenu idMso="ContextMenuMailItem">
<menuSeparator id="mailmenusep1" />
<button id="mailbutton" insertBeforeQ="Copy"
label="Call using Software"
imageMso="Call"
önAction="MailItemCallNumbers" />
</contextMenu>
</contextMenus>
</customUI>
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