![]() Key: HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Options Key: HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Excel\Options First, Excel uses the following registry setting to determine whether or not an Automation Add-in in the Add-in list is loaded: Excel 2002 When you make additions to the list in the Add-Ins dialog box or when you select and clear Add-ins in the list, Excel stores your changes in the registry. ![]() In the list of registered COM servers, click your Automation Add-in, and then click OK. In the Add-Ins dialog box, click Automation. Under Manage, click Excel Add ins, and then click Go. ![]() To use functions from an Automation Add-in in Excel 2007 and newer, follow these steps: Click OK to close the Add-Ins dialog box. The Automation Add-in appears in the Add-ins dialog box. From the list of registered COM servers, select your Automation Add-in and click OK. To use functions from an Automation Add-in in Excel, follow these steps: COM Add-ins must be in-process COM servers that support the IDTExtensibility2 interface however, Automation Add-ins can be in-process or out-of-process COM servers and implementation of IDTExtensibility2 is optional. Automation Add-ins build on COM Add-ins in that functions in Automation Add-ins can be called from formulas in Excel worksheets. In addition to COM Add-ins, Excel supports Automation Add-ins. The COM add-ins that are currently loaded are selected.įor additional information about COM Add-ins, click the following article numbers to view the articles in the Microsoft Knowledge Base:Ģ38228 HOWTO: Build an Office 2000 COM Add-In in Visual BasicĢ30689 SAMPLE: Comaddin.exe Office 2000 COM Add-In Written in Visual C įor more information, see the following Microsoft Web site: The COM Add-ins dialog box lists all COM add-ins that are installed on the computer. Under Manage, click COM Add ins, and then click Go. To do this, follow these steps:Ĭlick the Microsoft Office Button, and then click Excel Options. The dialog box lists all COM Add-ins that are installed on your system, and the COM Add-ins that are currently loaded are selected.ĬOM Add-ins can also be loaded and unloaded through the Excel user interface. ![]() Close the Toolbars dialog box.Ĭlick the COM Add-ins command that you added to display the COM Add-ins dialog box. Locate COM Add-ins in the list of commands and drag the command to a menu or CommandBar of your choice. In the Toolbars dialog box, click the Advanced tab. On the View menu, point to Toolbars and then click Customize. The load behavior describes how the Add-in is loaded in Excel: loaded at startup, loaded at next startup only, loaded on demand, or not loaded.ĬOM Add-ins can also be loaded and unloaded through the Excel user interface. The subkey for a COM Add-in also contains values that describe the COM Add-in's friendly name, description, and load behavior. The name of the subkey is the ProgID for the COM Add-in. This key contains a subkey for each installed COM Add-in. HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins\ COM Add-ins used by Excel are registered in the following registry key: In addition to normal COM registration, a COM Add-in is registered for each Office application in which it runs. When a COM Add-in is installed on a user's system, registry entries are created for the Add-in. All COM Add-ins must implement each of the five methods of this interface: OnConnection, OnStartupComplete, OnAddinsUpdate, OnBeginShutDown, and OnDisconnection. COM Add-in functions cannot be directly called from cell formulas in worksheets.Ī COM Add-in is an in-process COM server (an ActiveX DLL) that must implement the IDTExensibility2 interface. COM Add-ins are typically used to automate Excel in response to a click of a CommandBar button, a form or dialog box, or some other event specific to Excel such as opening or closing workbooks or entering data on worksheets. More Information COM Add-insĬOM Add-ins present the developer with a way to extend the functionality of Office applications for custom tasks. This article explains the differences between these two types of Add-ins. ![]() Microsoft Office Excel support Automation Add-ins in addition to Component Object Model (COM) Add-ins. Excel COM add-ins and Automation add-ins Summary ![]()
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