Problem when i am accessing ActiveX DLL from VB.NET

Question

Hello Every one, Good morning.

I have to access the active x dll which is installed on my system from VB.net. I added as reference and followed all the steps as given in I have declared private mycomponent as activexcomponent.libclass

and i gave constructor for this i.e. creating the object for this class in the constructor of the main form as mycomponet = new activexcomponent.libclass()

Then the following expection is coming when i tried to run the program.

System.InvalidOperationException: An error occurred creating the form. See Exception.InnerException for details. The error is: Creating an instance of the COM component with CLSID {D8A27DFF-A4B8-440E-8571-71A37D39403E} from the IClassFactory failed due to the following error: 800a0196. ---> System.Runtime.InteropServices.COMException: Creating an instance of the COM component with CLSID {D8A27DFF-A4B8-440E-8571-71A37D39403E} from the IClassFactory failed due to the following error: 800a0196.

I have registered the activex dll. I tried my best to figure out the problem but could not succeed in this. Please can any one help me out? Thanks a lot.

Answer 1

As far as I know, that's not a standard HRESULT so you should really read the documentation or contact the developers of the ActiveX control to find out from them what it means. However, I did find comments that for some control it meant that it needs to be shown as modal, so you could try making the form modal (show it using ShowDialog) and see if that makes any difference.