Hi,
I am also getting similar issue. I have posted the error message from the error log. For security reason I have ommited our domain details.
12/04/2009 14:54:42: MyDomain.COM Myserver.Mydomain.COM Public member 'length' on type 'DBNull' not found.
at Microsoft.VisualBasic.CompilerServices.Symbols.Container.GetMembers(String& MemberName, Boolean ReportErrors)
at Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateGet(Object Instance, Type Type, String MemberName, Object[] Arguments, String[] ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack)
at LansweeperService.mdlActivescanning.ActiveScan()