WINXP: Flushing DNS programatically using C#

In order to clear DNS resolver cache like what IPCONFIG /flushdns does, programmatically:

Requires dnsapi.dll which requires Win2000 or later. As usual, MS does not document the API, so your mileage may vary, but I think this is right:

using System.Runtime.InteropServices;

...

[DllImport("dnsapi.dll",EntryPoint="DnsFlushResolverCache")]
private static extern UInt32 DnsFlushResolverCache ();

...

public static void FlushResolverCache()
{
UInt32 result = DnsFlushResolverCache();
}