private void Test_BrowseServers(string serverName)
{
EasyDAClient client = new EasyDAClient();
try
{
foreach (OpcLabs.EasyOpc.ServerElement se in client.BrowseServers(serverName))
{
System.Diagnostics.Debug.Print("{0}", se.Description);
}
}
catch { System.Diagnostics.Debug.Print(""); }
}

if I use an EasyAEClient I get a value returned, but the DA one just never returns. Debugger is set to break on any thrown exception. (Have tried IP address and machineName)
Thanks

1 Windows service/app
2 easyDAClient1.ReadItem throws{System.UnauthorizedAccessException: Access is denied. }
3 For browsing I have tried the following to list the opc DA servers on the remote machine

This fails
Guid CLSID_OPCEnum = typeof(OpcRcw.Comn.IOPCEnumGUID).GUID ;
Type typeFromCLSID = Type.GetTypeFromCLSID(CLSID_OPCEnum, ipAddress,true);
iServerList = (OpcRcw.Comn.IOPCServerList2)Activator.CreateInstance(typeFromCLSID);


This works
typeFromCLSID = Type.GetTypeFromCLSIDnew Guid("{13486D51-4821-11D2-A494-3CB306C10000}"), ipAddressOrMachineName);
iServerList = (OpcRcw.Comn.IOPCServerList2)Activator.CreateInstance(typeFromCLSID);

This works
OpcRcw.ServerEnumerator se = new OpcRcw.ServerEnumerator();
se.Connect(ipAddressOrMachineName, "", "", "");
foreach (OpcRcw.ServerDescription d in se.GetAvailableServers(new Guid[] { typeof(CATID_OPCDAServer10).GUID, typeof(CATID_OPCDAServer20).GUID, typeof(CATID_OPCDAServer30).GUID }))
{
System.Diagnostics.Debug.Print("{0} ClassId:{1} ProgId{2} {3}",d.Description ,d.Clsid,d.ProgId,d.GetType().Name);
}
se.Disconnect();

Thanks

No... it just does not return... left it for >10mins

When calling EasyDAClient BrowseServers(machineName)onto a remote machine, the call is made but never returns causing application to hang.
DCOM is not set up so I would expect the function call to return / throw an exception rather than hang. However OPCEnum service is running on the remote machine.