Maybe you should be a bit more specific on what the problem is, and what you're expecting for help. Generic / high level questions like this, generally don't get a lot of response. Especially in this case, since this is a very generic problem, with many (possible) solutions already posted, and ongoing research being done.
Another thing you could do is to do a search on Google, using "traveling salesperson problem vb" as the search-criteria. You'll get approx. 16.000 results, and among the first couple there are some that include VB code.
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