How to remove domains from browser

[alphaMIKE429]

We have several contractors that connect to our network [physically] that are a part of either personal domains or workgroups. The annoying part is that the Win2k3 neighborhood browsing shows all of these workgroups/domains that have been picked up from these laptops.

Is there any way to prune this information or only allow our primary corporate domain network to show in the browser list?

Any help would be appreciated and thank you in advance.