I have a requirement to be able to view and zoom images from a VFP application. BMPs don't zoom like a vector based image so I can't use the default format.

The images I will be using are all technical line drawings.

The most convenient format for me to use is WMF.

Has anyone any experience regarding this?
Has anyone used any of the third party add-ons for viewing vector based images?
Are there any other formats that I should be considering?

TIA