I'm deploying a Winforms (Dot Net 2.0) project via ClickOnce. The project includes a form with a AxMSChart20Lib.AxMSChart control.

The problem is this. The program is installed on 5 computers including my own. Since this is a corporate environment the computers should have relatively similar setups. However, when the form containing the chart is called, in 2 out 5 of the computers, the app crashes, with an unhandled exception box. The first line of the list is: System.Runtime.InteropServices.COMException (0x80040154): Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

To make matters more confusing I am certain the control is being sent to the user machines (aside from checking the compile settings), because as a test, I put a routine in the main form, one line: Dim x As New AxMSChart20Lib.AxMSChart

This works in allthe PCs so I know the control is being deployed.

Suggestions?

It depends on the dll. Deploying it locally does not always work, and that has nothing to do with ClickOnce. Some dll's just have to be in the GAC, like the PIAs.

Have you tried putting it in the GAC to even see if that would fix the problem? That would give you more information that you can use to decide how to move forward.

RobinDotNet

I commented on this in the other thread where you asked about it. I recommend installing it in the GAC and registering it on the machines where you are having problems, and removing it from the deployment, and see if that fixes you problem.

RobinDotNet

It depends on the dll. Deploying it locally does not always work, and that has nothing to do with ClickOnce. Some dll's just have to be in the GAC, like the PIAs.

Have you tried putting it in the GAC to even see if that would fix the problem? That would give you more information that you can use to decide how to move forward.

RobinDotNet