Some help files at http://msdn.microsoft.com/en-us/library/ms268878.aspx

HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins\ExcelAddIn1\LoadBehavior
set this value to 0 (from the default of 3.

This link has a description of all the values of loadbehavior and their
descriptions
http://blogs.msdn.com/andreww/archive/2008/04/19/delay-loading-the-clr-in-office
-add-ins.aspx

LB

Meaning

Status in COM Add-ins Dialog

Behavior Description

0

Unloaded

Disconnected, Unloaded

The add-in is not loaded when the application starts. It can be loaded
through the COM Add-ins dialog box or programmatically, but reverts to
"Unloaded" when the application closes.

1

Loaded

Disconnected, Loaded

The add-in is not loaded when the application starts (despite the status of
"Loaded"). It can be loaded through the COM Add-ins dialog box or
programmatically, but reverts to "Loaded" when the application closes.

2

Boot-Loaded

Disconnected, Load at Startup

The add-in is not loaded when the application starts. It can be loaded
through the COM Add-ins dialog box or programmatically. Once the add-in is
loaded, it remains loaded until it is explicitly unloaded, that is
LoadBehavior is set to 3, and this status is persisted in the registry
across sessions.

3

Boot-Loaded

Connected, Load at Startup

The add-in is loaded when the application starts. It remains loaded until
it is explicitly unloaded.

8

Demand-Loaded

Disconnected, Load on Demand

The add-in will be loaded and connected when the host application requires
it, eg, when a user clicks on a button that uses functionality in the
add-in, that is LoadBehavior is set to 9.

9

Demand-Loaded

Connected, Load on Demand

The add-in will be loaded and connected when the host application requires
it, eg, when a user clicks on a button that uses functionality in the
add-in.

16

Connect First Time

Connected, Load on Demand (currently loaded)  The add-in loads as soon as
the application starts the first time after the add-in is registered.
Typically, the add-in creates a button or menu item for itself. The next
time the user starts the application, the add-in is loaded on demand (LB=8),
that is, it doesn't load until the user clicks the button or menu item
associated with the add-in. This sets the LoadBehavior to 9.

Hi Gary,

Open the Add-in in VS 2008. Run "Clean Build" from the Build menu. That will
un-register the Add-in.

Cindy Meister
INTER-Solutions, Switzerland
http://homepage.swissonline.ch/cindymeister (last update Jun 17 2005)
http://www.word.mvps.org

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