Windows Metafile (WMF) format is very popular vector format. You can export vector graphics (for example from CorelDraw) into the vector format. Metafile format can be scaled without loosing the quality.
MMB also has support for this format.
In this version there are some restrictions: Metafile object cannot be active, it doesn’t even have properties.
To place metafile objects on the screen:
Select Metafile from the Object menu.
Draw a rectangle on the screen, then the Open dialog will appear. Select .WMF file. Resize the rectangle to desired size.