Unable to drag attachment from Outlook in Outlook Version 2006

Hi There,

I am from a software company. Our application is allowed users to drag and drop files or documents to our application, it even can allow to drag an attachment from Outlook to our application. It works fine.

But it comes to Outlook Version 2006 (Build 13001.20384 Click-to-Run), it failed to drag an attachment from Outlook to our application.

You may get the sample applications via the link below:

https://drive.google.com/file/d/1PuhPa8RAWTwduzQMPG9EpF5Vidy-X9jH/view?usp=sharing

Just drag the attachment from an Outlook e-mail to the application and if successfully, it will prompt the messagebox with the file name of the attachment.

I would like to gather some ideas to figure out what’s wrong. Thanks.

Best Regards,
Jun Wei