Create Mailbox in Exchange 2003 using C#

Please could someone tell me the recommended way to perform common tasks in Exchange 2003 from a C# app? I'm rewriting an old VB app that used CDOEXM.DLL but I'm having loads of problems adding that as a reference to my VisualStudio2010 IDE. The VB app is mainly for adding/updating user details in AD but it does speak to Exchange too.

I need to create a mailbox and set various settings on it.

I've no experience with this at all but I belive there are a few options: CD开发者_开发技巧OEXM.DLL, some Web Services (not sure if they work with 2003 though) and maybe some PowerShell scripts.

If someone could point me in the right direction I'd appreciate it. Deadlines looming...!

Thanks

Take a look at Exchange.Net project.