Excel Events Conflict with VB and C# AddIns

[Andy]

Hi,
I have two com addins running in Excel. One is written in VB and the
other in C#. Both addins are interested in the Workbookopen event.
When the event is triggered the c# code captures the event but the VB
code does not. If i disable the c# addin then the vb code works. Looks
like the c# addin is somehow blocking the vb events.

Anyone know how to fix this?

Many thanks,
Andy