Michael E. Welborn is a consulting enterprise network engineer for SARCOM. He is an MCSE, an MCNE, and a CCNA. He specializes in international network administration, Microsoft SQL Sever database administration, and OS support.
You should clean up WINS databases at least once a year so that they provide accurate data. If you have only a few WINS servers, you can manually clean up the databases. If you have many WINS servers, you’ll likely want to automate this process.