BUG: Adding a non-text file to a solution folder from a Visual Studio 2005 add-in or macro opens it

Author:	Carlos J. Quintero (Microsoft MVP)	Applies to:	Microsoft Visual Studio 2005
Date:	February 2007

Introduction

When using a macro or add-in in VS 2005 to add a non-text file (such as .zip or .mp3 file) to a solution folder, the file is opened with the associated application.

Cause

This is a bug of Visual Studio 2005.

More Information

Steps to reproduce the problem:

• Open Visual Studio 2005 and create a new blank solution.
• Create a new solution folder (NewFolder1).
• Create two files, File1.txt and File1.zip in your documents folder.
• Open the Macros IDE and create this macro:

  Sub AddFileToSolutionFolder()

     Dim sMyDocumentsFolder As String

     sMyDocumentsFolder = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)

     DTE.Solution.Projects.Item(1).ProjectItems.AddFromFile(sMyDocumentsFolder & "\File1.txt")
     DTE.Solution.Projects.Item(1).ProjectItems.AddFromFile(sMyDocumentsFolder & "\File1.zip")

  End Sub

• Execute the macro. The File1.txt is added to the solution without opening it, but the File1.zip file is opened. This also happens with other files such as .mp3, .doc, etc.

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