nlsxbe.dll Domino interop Office x64

HCL Notes/Domino 8.5 Forum (includes Notes Traveler)

Subject: nlsxbe.dll Domino interop Office x64

Feedback Type: Problem

Product Area: Notes Client

Technical Area: Application Development

Platform: Windows

Release: 8.5.2

Reproducible: Always

I have an Outlook 2010 add-in developed in a Visual Studio solution of VB & C# projects. This add-in copies the selected email from Outlook into a Notes database. It uses Interop.Domino.dll which was generated in Visual Studio by adding domobj.tlb as a reference.

The add-in uses .net 4 framework, and is compiled for any CPU, but with the target switched to x86 or x64 for each version. The add-in compiles and runs fine on Windows 7 64 bit with Office 32 bit version. Also runs fine on Win7 32 bit with Office 32 bit. But it always fails on Office 64 bit version on Win7 x64.

Problem is when accessing nlsxbe.dll (domino COM dll) when calling:
m_objSession = New Domino.NotesSession

Looking at the MS site it looks like we may need a 64 bit version of Interop.Domino.dll to get it to work in Office x64: http://msdn.microsoft.com/en-us/library/ee691831.aspx

Existing 32-bit ActiveX controls, both third-party and Microsoft-supplied, are not compatible with the 64-bit version of Office 2010. For ActiveX controls and COM objects, there are three possible solutions:
- If you have the source code, you can generate a 64-bit version yourself,
- You can contact the vendor for an updated version,
- You can search for an alternative solution.

Is there a 64 bit version of the dll? Or is there any other method that someone has used to get this to work in Office 2010 64 bit version?

Feedback number WEBB8M66BK created by ~Tony Minvelutexoni on 09/29/2011

Status: Open
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