ID: Q163113
The information in this article applies to:
This article contains a sample Microsoft Visual Basic for Applications macro (Sub procedure) that displays a list of add-in files(.ppa or .pwz) available in the current session of Microsoft PowerPoint.
Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft Support professionals can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific needs. If you have limited programming experience, you may want to contact the Microsoft fee-based consulting line at (800) 936-5200. For more information about the support options available from Microsoft, please see the following page on the World Wide Web:
   http://www.microsoft.com/support/supportnet/refguide/default.asp
   Sub DisplayAddins()
      Dim lTotalAddins As Long
      Dim oAddIn As AddIn
      ' Used to build the dialog box.
      Dim strPrompt As String
      Dim strAvailable As String
      Dim strLoaded As String
      Dim strTitle As String
      ' Get the total number of Addins.
      lTotalAddins = PowerPoint.AddIns.Count
      Select Case lTotalAddins
         Case 0
            ' No add-ins are Available.
            strTitle = "No Add-Ins"
            strPrompt = "You currently have no PowerPoint" _
               & " Add-Ins installed."
         Case Else
            If lTotalAddins = 1 Then
               ' One add-in available
               strTitle = "One Add-In"
               strPrompt = oAddIn.FullName
            Else
               ' Set up the title for the dialog box.
               strTitle = lTotalAddins & " Add-Ins Available"
               ' Set the loaded and available list.
               strLoaded = "Loaded: " & Chr(13)
               strAvailable = Chr(13) & "Available: " & Chr(13)
               ' Loop through the add-ins collection.
               For Each oAddIn In PowerPoint.AddIns
                  If oAddIn.Loaded = msoTrue Then
                     strLoaded = strLoaded & Chr(9) & oAddIn.FullName _
                        & Chr(13)
                  Else
                     strAvailable = strAvailable & Chr(9) _
                        & oAddIn.FullName & Chr(13)
                  End If
               Next oAddIn
               ' Combine the add-in loaded list with available add-ins
               ' list.
               strPrompt = strLoaded & strAvailable
            End If
      End Select
      ' Display the dialog box.
      MsgBox strPrompt, vbInformation, strTitle
   End Sub
For more information about creating Visual Basic for Applications macros, click the Office Assistant in Microsoft PowerPoint, type "how to create a macro," click Search, and then click to view "Create a macro in Visual Basic Editor."
For more information about running Visual Basic for Applications macros, click the Office Assistant in Microsoft PowerPoint, type "how to run a macro," click Search, and then click to view "Run a macro."
NOTE: If the Assistant is hidden, click the Office Assistant button on the Standard toolbar. If the Assistant is not able to answer your query, please see the following article in the Microsoft Knowledge Base:
   ARTICLE-ID: Q176476
   TITLE     : OFF: Office Assistant Not Answering Visual Basic Questions
For more information about getting help with Visual Basic for Applications,
please see the following article in the Microsoft Knowledge Base:
   ARTICLE-ID: Q163435
   TITLE     : VBA: Programming Resources for Visual Basic for
               Applications
Keywords          : kbcode kbmacro kbprg kbdta kbdtacode kbpptvba 
Version           : WINDOWS:97; MACINTOSH:98
Platform          : MACINTOSH WINDOWS
Hardware          : MAC x86
Issue type        : kbhowto
Last Reviewed: May 17, 1999