sham

I want to get reference to the activex object.Which method should I use GetObject or CreateObject?

Rory

GetObject is when you want to get a handle to a single instance but multi-use (possibly MSTS) object, such as ActiveDirectory. e.g. GetObject("WinNT://mydomain/auser,user") returns an IADsUser object referencing a user in a domain, as opposed to creating a "user object" which is impossible.
CreateObject actually creates a new local copy of a multi-instance object such as the Windows Scripting Objects, as opposed to referencing an already existent object.
You should always aim to use the right method: some objects work with both, though not always.