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Andrew Whitechapel

Visual Studio, Office and other Nonsense

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Demand-Loading VSTO Add-ins
In an earlier post , I talked about how you could delay (or prevent) the loading of managed code using a native add-in. In that post I also listed the standard LoadBehavior settings, and I was assuming that everyone knows how these apply, but I got a Read More...
Add-ins for Multiple Office Versions without PIAs (Pt2), or _VtblGap
In my last post , I discussed how you could avoid any dependency on the Office PIAs by using ComImport to redefine the host application’s OM interfaces. Someone (A Developer) pointed out that I had actually omitted the trailing 2 members of the IRibbonControl Read More...
The Case For Shared Add-ins
People have been building native shared add-ins for Office (and related apps) since their introduction in Office 2000. People have been building managed shared add-ins since the introduction of .NET in 2002. VSTO support for managed add-ins was introduced Read More...
Delay-loading the CLR in Office Add-ins
Suppose you control your enterprise desktops to the extent that you control which add-ins are installed. Suppose, further, that you want to avoid the hit of loading the CLR at application startup. One way is to delay-load your managed add-ins. The registered Read More...
VSTO Add-ins, COMAddIns and RequestComAddInAutomationService
The COMAddIns property is a collection of COMAddIn objects exposed by Office applications that support COM add-ins. The COMAddIn interface defines a small number of methods/properties, such as the ProgId of the add-in and the Connect state. It also defines Read More...
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