Quote from iqfeed:
There are fully documented sample applications in VB as part of the IQFeed API subscription (www.iqfeed.net/dev) . If you sign up as a developer, you will receive the full documentation, sample apps/code and direct access to our developers for support.
Since we are always making change to the IQFeed client, I wouldn't suggest trying to hack something together as you won't be notified when there are changes needed.