How do I export a diagram to MS Word

I need to export a diagram to MS Word. Ideally I would be able to do this with some type of vector format so that it looks good when printed.

I suggest writing it out as an EMF file. Use the MetafileView.cs (or .vb) classes in version 2.5.
Note that to get real vector information, you need to write it out as a file. If you store it on the clipboard, you’ll basically get a bitmap.