Server threw exception during 16.ActiveX (UI COM) sample program

Hi All,

The server threw an exception when i trying to run 16.ActiveX (UI COM) sample program. I am using SAP B1 2005A. The error message as below...

Error: An Unhandled exception of type

'System.Runtime.InteropServices.COMException'

occurred in HelloWorld.exe

Additional information: The server threw an

exception

• This error ocuurred when i reach the the code

AcXTree.ClassID = "MSComctlLib.TreeCtrl.2", line 208,

ActiveXTree.vb

I follow the sample program sequence and stuck on this state.

Thanks.

rgds

ERIC