You can build your own tools (such as console applications) using C#, and the functions you need are provided by .NET. The underlying implementations are platform-specific, but the framework will take care of calling the native code on the OS you're using.
You won't normally need to programmatically resolve a hostname, as most networking commands will do this automatically. However, it can occasionally be useful, especially if you want to perform a reverse DNS lookup and find the hostname for an IP address.
The .NET Dns class differs from nslookup, as it includes entries from the local hosts file rather than just querying a DNS server. It is, therefore, more representative of the IP addresses that other processes are resolving. ...
