Outlook: no Add-In does load anymore

Hot Topic

Distribution MS-Access Database
Vs.net 2003 trouble
How to use HideDuplicates
ReportViewer RenderControl returns error
Cannot find server for Visual Studio help
Sometimes I'm unable to debug Windows Forms for more than 60 seconds
"Requests to the MSDN Online server have timed out" error
FPSE Version Number question
Task dll is locked after build
Error : Value cannot be null ,Parameter name:Key

Visual Studio

joins in linq
What action can change .dot file
Deploying MS Word add-ins
Could not find schema information for the element 'http://schemas.microsoft.com/.NetConfiguration/v2.0:system.serviceM
Unable to build MSI/Setup program referencing Outlook Addin
About Interface of Project Designer
VSTO - Outlook - Unload addin
Directions/Sys Reqs/Pre Reqs needed: VS2005 beta 1 going to VS2005 beta 2
Programmatically setting the DataContext of a control (e.g a grid)
AddVisualChild question

Outlook: no Add-In does load anymore

Hi,

currently i'm developing with VSTO 2005 ans VS 2005 Team Suite for Office Outlook 2003.

I wrote an Add-In with C# and it works well, creating a setup which grants the CAS too.

But today i changed some code within, rebuild the solution and tried to start a debug session with a break point right in the ThisApplication.ThisApplication_Startup Method. And nothing happens!!
My Add-In was not loaded anymore.
I tried to do a reinstall with one of the previous generated setup packages (which worked!) and started Outlook manually.
And nothing happens. My Add-In was not loaded.

So, even previous versions which worked yesterday doesn' work anymore. In fact, MS VSTO samples for Outlook Add-Ins doesn't work either. They worked yesterday too!

The Add-Ins show up in the COM-Add-Ins List in Outlook, but can't get checked. They can get checked but after clicking OK and then returning to the dialog they remain unchecked. There is no error message below.
So it seems to me that the AddinLoader.dll can't load them anymore. But why CAS should be granted, especially in debugging sessions.
I cleaned the registry from my addin, done a restart of the pc, but nothing changes this behaviour.

Any Ideas

Best Regards,
Manuel

Answer this question

Outlook: no Add-In does load anymore

  • Joakim Gyllstedt

    There are several possibilities as to why your add-in doens't load anymore:

    It's possible that your add-in is disabled by outlook. Open Outlook, click Help-About. In the about dialog, click the button 'Disabled items'. If your add-in is in the list, selected it and click enable.

    It might be disabled in the registry: Open the registry an navigate HKEY_LOCAL_MACHINE\Software\Microsoft\Office\Outlook\AddIns. Your addin should be listed there (most likely as <addinname>.connect). Check the value of the LoadBehavior key. This should be set to 3 (load on startup). It's possible that the registry key is at HKEY_CURRENT_USER instead of HKEY_LOCAL_MACHINE



  • Li Wang

    Hello,

    I think Sven's response is on the right track. If your add-in does something unexpected at startup, then Outlook can disable your add-in from loading in the future. It sounds in your case like Outlook has "hard disabled" your add-in, in which case all Outlook add-ins that use AddinLoader.dll are prevented from loading.

    The following topics in the VSTO 2005 documentation provide more information about why your add-in might have been disabled by Outlook, and how to re-enable it:

    - Debugging in Outlook Projects (http://msdn2.microsoft.com/en-us/library/ms269003(VS.80).aspx)

    - How to: Re-enable an Outlook Add-in That Has Been Disabled (http://msdn2.microsoft.com/en-us/library/ms268871(VS.80).aspx)

    I hope this helps,

    McLean Schofield



  • Outlook: no Add-In does load anymore
Answer this question