security exception in embedded windows user controls into internet explorer!

Question

I have made control in c# (.dll) and used it in html file. It work fine, but when control connect socket connection it catch excpetion. System.Security.SecurityException: Request for the permission of type System.Net. DnsPermission, System, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 failed. at System.Security.CodeAccessSecurityEngine.CheckHelper(PermissionSet grantedSet, PermissionSet deniedSet, CodeAccessPermission demand, PermissionToken permToken) at System.Security.CodeAccessSecurityEngine.Check(PermissionToken permToken, CodeAccessPermission demand, StackCrawlMark& stackMark, Int32 checkFrames, Int32 unrestrictedOverride) at System.Security.CodeAccessSecurityEngine.Check(CodeAccessPermission cap, StackCrawlMark& stackMark) at System.Security.CodeAccessPermission.Demand() at System.Net.Dns.Resolve(String hostName) at System.Net.Sockets.TcpClient.Connect(String hostname, Int32 port) at System.Net.Sockets.TcpClient..ctor(String hostname, Int32 port) html code is following: How I can access the socket connection? Can I use verisign or other else and how?