<div>
Hi marahman3001, thanks for your reply and this link.<br />
Unfortunately it doesn't help because :<br />
&nbsp;- The add-in seems correctly loaded in the Excel add-in options<br />
&nbsp;- There are no other COM add-ins<br />
&nbsp;- The option &quot;Ignore other applications that Use Dynamic Data Exchange (DDE)&quot; is not checked in Excel<br />
&nbsp;- There are no error in the Windows events log<br />
<br />
Would you have any other ideas?
</div>


Hi marahman3001, thanks for your reply and this link.
Unfortunately it doesn't help because :
 - The add-in seems correctly loaded in the Excel add-in options
 - There are no other COM add-ins
 - The option "Ignore other applications that Use Dynamic Data Exchange (DDE)" is not checked in Excel
 - There are no error in the Windows events log

Would you have any other ideas?

<div>
I haven't checked the proposed solution related to the registry, I'm going to take a look at it.
</div>


I haven't checked the proposed solution related to the registry, I'm going to take a look at it.

<div>
Hi, the solution was simple, the user has both Excel 2007 and 2010 versions installed, and the 2007 was installed after the 2010, so when he double clicked on an excel file, it was opened by Excel 2007, whereas the add-in was installed for Office 2010. Thanks for your help, I'm closing the question.
</div>


Hi, the solution was simple, the user has both Excel 2007 and 2010 versions installed, and the 2007 was installed after the 2010, so when he double clicked on an excel file, it was opened by Excel 2007, whereas the add-in was installed for Office 2010. Thanks for your help, I'm closing the question.

<div>
<div class="content wysiwyg-content">
Hello,<br />
<br />
I've developed an add-in for Microsoft Excel 2010 with Visual Studio 2010, and it works fine except on a single client computer, where the add-in is loaded when the user opens Excel, but not when he double click on an Excel file (we've tried with several extensions : csv, xls, xlsx).<br />
<br />
Would you know how to fix this problem?
</div>
</div>


Hello,

I've developed an add-in for Microsoft Excel 2010 with Visual Studio 2010, and it works fine except on a single client computer, where the add-in is loaded when the user opens Excel, but not when he double click on an Excel file (we've tried with several extensions : csv, xls, xlsx).

Would you know how to fix this problem?

Add-in loaded when Excel application is opened but not when double-clicking on an Excel file

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.

Microsoft Excel

Development in most programming languages is frequently done with an editor or integrated development environment (IDE). An IDE is a software application that provide comprehensive facilities to computer programmers for software development. An IDE normally consists of a source code editor, build automation tools and a debugger. XCode, Visual Studio, Adobe Dreamweaver and Eclipse are some of the more popular development tools, but an editor or IDE can be anything from simple text editors to sophisticated programs. Related topics: All programming and development language, database and web based content management systems topics

Editors IDEs

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.