Run-time exception (line 17): Request for the permission of type 'System.Net.DnsPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Stack Trace:
[System.Security.SecurityException: Request for the permission of type 'System.Net.DnsPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.CodeAccessPermission.Demand()
at System.Net.Dns.HostResolutionBeginHelper(String hostName, Boolean justReturnParsedIp, Boolean flowContext, Boolean includeIPv6, Boolean throwOnIPAny, AsyncCallback requestCallback, Object state)
at System.Net.Dns.BeginGetHostAddresses(String hostNameOrAddress, AsyncCallback requestCallback, Object state)
at Program.LookupHostName() :line 17
at Program.Main(String[] args) :line 9