VB app using COM works on Domino 8.5 x86, but not on x64

I have a VB console app that interacts with the Domino server. It works fine on Domino 8.5 x86, but when run on x64 version o Domino 8.5, I get this error message when attempting to create a session:

“Retrieving the COM class factory for component with CLSID {} failed due to the following error: 80040154”

Notes:

On the x86 version, I run “regsvr32 nlsxbe.dll” from the command line to make sure I can use COM. I did/verified the same on the x64 Domino server.

I built the VB app initially to run on any CPU, and while trying to debug, did several builds to run the app as an x86 app (on the Domino x64 server) in case that was the issue, but still received the same error message listed above.

Subject: same problem

did you ever get a solution?Thanks