Labview unable to pass LPDISPATCH parameter

[Vish777]

I have an ActiveX server which also has OLE interfaces. My client invokes ActiveX interfaces only.

I have client written in both Visual Basic and LabView.

My VB client works perfect, but Labview doesnt, especially when I am passing a LPDISPATCH from labview to ActiveX interface

Any clue, why this can happen? Thanks

[Lab Viewer]

I'm not sure if this is the problem, but I noticed that LV ActiveX reference and container performs differently. Thus, if you are doing some initialization stuff during interface load, it is possible that ActiveX reference will not work properly. Try with LV container (I don't know if it's available for LV < 6.0), for me this was the solution.

Good luck