Please follow the MicroStation Programming forum best practices.
Identify Your Platform
Please identify the version of MicroStation, or other product such as PowerDraft, that you are using: MicroStation CONNECT or MicroStation V8i.
The APIs supplied with MicroStation CONNECT are different to those supplied with MicroStation V8i. Consequently, our answers are likely to be different.
Is your Application In-Process or Out-of-Process?
If you're creating a .NET application, are you building an AddIn in-process app. (i.e. a DLL) or a stand-alone app. (i.e. an EXE)?
Code Syntax Highlighting
When you post code, use the Forum advanced editor's syntax highlighting tool. That's the icon that resembles a pencil: 