How To Make VBA Class Modules Available Out-of-Process (244075)


The information in this article applies to:

  • Microsoft Visual Basic for Applications (VBA) Software Development Kit (SDK) 6.0
  • Microsoft Visual Basic for Applications (VBA) Software Development Kit (SDK) 6.1
This article was previously published under Q244075

SUMMARY

This article describes how you can make a Visual Basic for Applications (VBA) Class Module available out-of-process.

MORE INFORMATION

In certain situations, it may be useful to make instances of a VBA Class Module available out-of-process. However, VBA Class Modules are marked private by default, meaning that their type information is not available for marshalling purposes. In order to correct this, the instancing property of the VBA Class Module must be changed from Private to Public, Non-creatable.

The instancing parameter can also be changed programmatically, using the VBA Extensibility library. The following VB/APC code demonstrates this scenario. It assumes you have a variable called TheProject of type MSAPC.Project): 
Dim TheProjectItem As MSAPC.ProjectItem

Set TheProjectItem = TheProject.ProjectItems.AddClassModule("Class1")

TheProjectItem.VBComponent.Properties("Instancing").Value = 2
Modification Type:MinorLast Reviewed:7/2/2004
Keywords:kbhowto KB244075
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